Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4529c Report Date: 09-May-96:19:41 Version: ********** Check-in Date: ********** 1.Proposal Title: IMAGING OF NEAR-NUCLEAR PLASMA IN COMETS -CYC3 MEDIUM ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID SOLAR SYSTEM GO Target of Oppt. Sub Category COMETS ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone John C. Brandt UNIVERSITY OF COLORADO USA ------------------------------------------------------------------------------------ 7. Abstract We propose to carry out high-resolution imagery of the near-nuclear regions of a comet for the purpose of determining the structure and evolution of the plasma. These images will determine the nature of the comet's interaction with the solar wind, show the morphology of the comet's magnetic field, provide a critical test of mechanisms for disconnection events (DE's), and assist in determining the important mechanism for ionizing molecules in comets. The interaction of the solar wind with comets -- capture of solar magnetic field lines, formation of the plasma tail, formation of rays, activity including disconnection events, ionization of molecules -- is widely believed to follow a standard paradigm. None of the features of the paradigm have been verified for nuclear distances less than 300 km or with spatial resolutions comparable to the expected dimension of fine structure. This dimension is the Larmor radius of water ions, for this case ~15 km. For a comet at 0.5 AU, the WF/PC image would be approximately 50,000 km on a side with a resolution of 37 km. Such an image would provide, by far, the most stringent test of our physical view of the comet/solar wind interaction. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0.10 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: WF/PC ------------------------------------------------------------------------------------ 12. Special sched req: Time Critical obs. ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4529c PI: John C. Brandt Proposal Title: IMAGING OF NEAR-NUCLEAR PLASMA IN COMETS -CYC3 MEDIUM ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Pi John C. Brandt UNIVERSITY OF COLORADO USA Stephen M. Larson UNIVERSITY OF ARIZONA USA Malcolm B. Niedner GODDARD SPACE FLIGHT CENTER USA Cora E. Randall UNIVERSITY OF COLORADO USA ------------------------------------------------------------------------------------ 2. Scientific Justification. Paper copy only. Page 3 ------------------------------------------------------------------------------------ 3. Description of proposed observations. We will acquire WFC images of a new comet using different filters. Our goal is to obtain temporal derivatives of the images in each of the filters. We will thus obtain multiple exposures with the same filter/exposure time combination, scheduling observations such that the time elapsed between identical exposures is on the order of 15 minutes. The exposure times and thus the scheduling strategy depend heavily on the predicted magnitude of the comet. Below we have outlined strategies for predicted magnitudes of 4,5, 6,7,8,9 with typical gas/dust ratios. These strategies should suffice for uncertainties of about 1.5 mag. If the comet has an atypical dust/gas ratio, we must change the observing strategy. In any case, we require that the comet be brighter than magnitude 10. The time derivatives will be obtained from images using the F413M, F622W, F785LP and F368M WFC filters. These derivatives will enable us to study the structure in CO+, H2O+, Continuum, and CO2+, respectively. ---------------------------------------- -------------------------- With the 3.0 hours awarded to us, we will be able to utilize somewhat more than 3 HST orbits (assuming 52 minutes of unocculted observing time per orbit). Because the amount of time which elapses between WFC exposures is critical to the science which we have proposed, we have structured the current proposal according to HST orbit. The time elapsed between orbits should be such that all 4 orbits will be executed within 1 day. The time elapsed between separate exposures WITHIN an orbit is critical. If schedulers find it impossible to schedule this proposal as specified below, it will be necessary for us to revise our strategy. We emphasize that any deviation from the sequences of exposures defined below requires our input. With that intro, the exposure sequences are as follows (times in minutes): =================================================================== STRATEGY FOR PREDICTED MAGNITUDE 4 ORBIT_1 TIME ORBIT_2 TIME ORBIT_3 TIME ORBIT_4 TIME ------------------------------------------------------------------- GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/7s 1 622W/1s 1 785LP/2s 1 413M/18s 1 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/40s 2 622W/4s 1 785LP/8s 1 785LP/4s 1 Readout 1 Readout 1 Readout 1 Readout 1 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 Strategy for magnitude 4 continued... 413M/7s 1 622W/1s 1 785LP/2s 1 413M/18s 1 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/40s 2 622W/4s 1 785LP/8s 1 785LP/4s 1 Readout 1 Readout 1 Readout 1 Readout 1 -------------- --------------------PreFlash 3 PreFlash 3 ------------------------------ ----785LP/2s 1 413M/18s 1 ----------------------------------Readout 1 Readout 1 -------------------------------------------------------------- --- TOTALS: 43.5 41.5 46.5 46.5 TOTAL for all orbits for magnitude 4 = 178 minutes ================================================================== STRATEGY FOR PREDICTED MAGNITUDE 5 ORBIT_1 TIME ORBIT_2 TIME ORBIT_3 TIME ORBIT_4 TIME ------------------------------------------------------------------- GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/18s 1 622W/2s 1 785LP/4s 1 413M/40s 2 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 Strategy for magnitude 5 continued... ORBIT_1 TIME ORBIT_2 TIME ORBIT_3 TIME ORBIT_4 TIME 413M/80s 2 622W/10s 1 785LP/20s 1 785LP/10s 1 Readout 1 Readout 1 Readout 1 Readout 1 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/18s 1 622W/2s 1 785LP/4s 1 413M/40s 2 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/80s 2 622W/10s 1 785LP/20s 1 785LP/10s 1 Readout 1 Readout 1 Readout 1 Readout 1 --------------------------------- ------------------PreFlash 3 ------------------------------------------------- --413M/40s 2 ---------------------------------------------------Readout 1 ----------------------------------------------------------------- TOTALS: 43.5 41.5 41.5 49.5 TOTAL for all orbits for magnitude 5 = 176 minutes ================================================================== STRATEGY FOR PREDICTED MAGNITUDE 6 ORBIT_1 TIME ORBIT_2 TIME ORBIT_3 TIME ORBIT_4 TIME ----------------------------------------------------------- -------- GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/40s 2 622W/4s 1 785LP/10s 1 413M/120s 2 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/230s 4 622W/26s 1 785LP/50s 2 785LP/26s 1 Readout 1 Readout 1 Readout 1 Readout 1 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/40s 2 622W/4s 1 785LP/10s 1 413M/120s 2 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 413M/230s 4 622W/26s 1 785LP/50s 2 785LP/26s 1 Readout 1 Readout 1 Readout 1 Readout 1 ---------------- ------------------------------------------------- TOTALS: 49.5 41.5 43.5 43.5 TOTAL for all orbits for magnitude 6 = 178 minutes ================================================================== STRATEGY FOR PREDICTED MAGNITUDE 7 ORBIT_1 TIME ORBIT_2 TIME ORBIT_3 TIME ORBIT_4 TIME ----------------------------------------------------------- -------- Strategy for magnitude 7 continued... GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 622W/12s 1 413M/300s 6 413M/120s 2 622W/26s 1 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 ------------------- PreFlash 3 PreFlash 3 622W/60s 2 ------------------- 785LP/60s 2 785LP/60s 2 Readout 1 ------------------- Readout 1 Readout 1 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 622W/12s 1 413M/300s 6 413M/120s 2 622W/26s 1 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 -- ----------------- PreFlash 3 PreFlash 3 622W/60s 2 ------------------ - 785LP/60s 2 785LP/60s 2 Readout 1 ------------------- Readout 1 Readout 1 -------------------------------------------------- PreFlash 3 -- ------------------------------------------------ 622W/26s 1 ------------------ -------------------------------- Readout 1 ---------------------------------- ------------------------------- TOTALS: 43.5 41.5 45.5 48.5 TOTAL for all orbits for magnitude 7 = 179 minutes =================================================================== STRATEGY FOR PREDICTED MAGNITUDE 8 ORBIT_1 TIME ORBIT_2 TIME ORBIT_3 TIME ORBIT_4 TIME ------------------------------------------------------------------- GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 622W/26s 1 413M/500s 11 785LP/60s 2 622W/70s 2 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 ------------------- PreFlash 3 PreFlash 3 622W/140s 3 ------------------- 785LP/260s 5 622W/70s 2 Readout 1 ------------------- Readout 1 Readout 1 Track 51 1.5 Track 51 1.5 Track 51 1.5 --------------- WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 --------------- PreFlash 3 PreFlash 3 PreFlash 3 --------------- 622W/26s 1 413M/500s 11 785LP/60s 2 --------------- Readout 1 Readout 1 Readout 1 -------------- - PreFlash 3 ------------------- PreFlash 3 --------------- 622W/140s 3 ------------------- 785LP/260s 5 --------------- Readout 1 ------------ ------- Readout 1 --------------- ---------------------------------------- -------------------------- TOTALS: 45.5 51.5 51.5 29 TOTAL for all orbits for magnitude 8 = 177.5 minutes =================================================================== STRATEGY FOR PREDICTED MAGNITUDE 9 ORBIT_1 TIME ORBIT_2 TIME ORBIT_3 TIME ORBIT_4 TIME ------------------------------------------------------------------- GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 GS Acq 12.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 Track 51 1.5 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 PreFlash 3 PreFlash 3 PreFlash 3 PreFlash 3 622W/70s 2 413M/500s 11 785LP/350s 7 622W/300s 6 Readout 1 Readout 1 Readout 1 Readout 1 PreFlash 3 ------------------- ---------------- PreFlash 3 622W/180s 3 ------------------- ---------------- 622W/300s 6 Readout 1 ------------------- ---------------- Readout 1 Track 51 1.5 Track 51 1.5 Track 51 1.5 --------------- WFPC Algn 3 WFPC Algn 3 WFPC Algn 3 --------------- PreFlash 3 PreFlash 3 PreFlash 3 --------------- 622W/70s 2 413M/500s 11 785LP/350s 7 --------------- Readout 1 Readout 1 Readout 1 -------------- - PreFlash 3 ------------------- ---------------- --------------- 622W/180s 3 ------------------- ---------------- --------------- Readout 1 ------------ ------- ---------------- --------------- TOTALS: 47.5 51.5 43.5 37 TOTAL for all orbits for magnitude 9 = 179.5 minutes. =================================================================== We have specified Guide Tol=1". This assumes that we initially acquire guide stars in coarse mode, and shift to gyros when the comet moves such that the guide stars move out of the FGS field of view. With a gyro drift of .002"/s, this corresponds to an "on-gyro" time of 500s; and about 700km smearing on a comet at 1 AU. Page 4 ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. The consistent spatial resolutions of about 0.1 arc sec over time required for this investigation are only available from HST. (We will be observing simultaneously from the ground at different resolutions). The capability of 0.1 arc sec for a comet at 0.5 AU distance translates to a resolution of about 37 km. This approaches the smallest expected level of detail (the Larmor radius for 20 AMU ions (T=10^4 K and B=50 gamma) is about 15 km) and is almost a factor of 10 better than available from the ground. Observations with HST offer the only opportunity to document the near-nuclear region (say, 5e4 km) at a resolution of 37 km, and the only opportunity to probe the innermost region. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. This program requires a reasonably bright comet showing plasma emission and will be chosen by us by monitoring candidate comets, either periodic or new. For the unpredictable long period comet, we anticipate an interval of one month between determining that the comet is suitable and the time at which observations should begin. The interval would probably be longer for a periodic comet. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. The purpose of this proposal is to obtain temporal derivatives of WFC comet images. To do so, we need to acquire identical images with a time delay on the order of 15 minutes between them. This requires that the images be acquired in the same orbit. See also the answer to question 7 for more details on how the images will be analyzed. Page 5 ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. The purpose of the data reduction is to determine the morphology of the near- nuclear plasma in one or more molecules (eg., H2O+ and CO+). The reduction consists of two phases: (A) Deconvolution of the image using the best available point-spread function. One of us (JCB) has experience with this for the comet Levy program (Weaver, et al., 1992). As an independent check on the techniques used, a parallel reduction was carried out with the assistance of Dr. Eliot Malumuth of the GHRS team. We were able to verify the results. Note again that primarily we are after morphology; photometry will be crude. (B) Extraction of cometary ion features, if necessary. Shift-difference or temporal-difference techniques will be our primary approach. One of us (SML) has considerable experience with these techniques. Separation of the plasma structures from the continuum (dust) reflection and neutral gas emission could be approached in three generic ways: (1) Straight imagery (wavelength chosen for maximum contrast) with no other provision for continuum extraction might produce an image with sufficient contrast to identify the plasma structures. Such an approach might be successful for a comet with a low dust-to- gas ratio. (2) A speparate continuum image could be obtained for subtraction from the image containing plasma plus continuum. This approach can work effectively only if the two images can be aligned and if the continuum image is not contaminated with plasma emission. While this approach can be effective, we prefer to use primarily the following well-established (and more generally applicable) approach. (3) Shift-difference techniques have been used for years and are effective for our needs. This is a standard, time-proven technique with many published results. Basically, the latter technique works because the continuum emission varies slowly over distance (or time) while the plasma emission varies rapidly over distance (or time). Subtraction of a slightly-shifted image from an original involves subtraction of a continuum very nearly equal to the original (thus removing the continuum) and subtraction of a plasma emission very different from the original (thus emphasizing it). Because the same instrumenta configuration is used for both images, problems generally are minimal. Problems with shift-difference techniques could arise if they involve continuum images with dust structure. In this case, a pure continuum image would be needed. Therefore, we have adopted a hybrid strategy which uses shift-difference as the primary approach for efficiency and the straightforward continuum subtraction as the secondary approach for certainty. In addition, the capability to perform the image processing two independent ways provides a valuable check. The processed images will be analyzed for determination of detailed morphology, dynamics and comparison with the standard paradigm. These results will be placed in the context of the images (obtained by us) at intermediate and large scales. The solar wind conditions at the comet will also be determined. Thus, we expect that a sequence of HST images should lead to a major, detailed comparison of theory with observations, and a more complete physical understanding of near-nuclear plasma phenomena in comets. ------------------------------------------------------------------------------------ 8. Additional comments or special requests. Coordinated observations: These will be carried out at facilities of the Lunar and Planetary Laboratory, University of Arizona and the Joint Observatory for Cometary Research (plus a mini-network). Our primary sites are under the control of Co-Is Larson and Niedner, and thus are available to support this investigation. These observations consist of several distinct phases: (1) Monitoring of candidate comets to verify if they are suitable for this program; (2) follow-up observations to accurately characterize the chosen comet; and (3) imaging observations at several different scales to cover the times of the HST images. Page 6 ------------------------------------------------------------------------------------ 9. Description of previous HST work. 1184: "Ultraviolet Atlas of Bright Suitable Comet of Opportunity", PI=J.C. Brandt; not executed yet. SV1355: "Cross Calibration of the GHRS Low and Medium Resolution Gratings", not related to current proposal. DD Comet Levy: "Director's Discretionary Observations of Comet Levy", PI=H.A. Weaver. Two sets of images of Comet Levy using a filter dominated by continuum emission were acquired at times separated by 6.5 hours. all images were obtained with the WFPC, with a spatial resolution of about 78 km at the comet for these observations. The coma emission was clearly asymmetric, and was significantly brighter on the sunward hemisphere. Analysis of the spatial brightness distribution led to the conclusion that the emission was neither isotropic, nor typical of cometary jets such as those observed in Comet Halley. The appearance of dust arcs propagating through the coma indicated that the coma of Comet Levy was variable, in accordance with previous ground-based and IUE observations. GO 3582: "Ultraviolet Observations of Cometary Methanol", PI= C.E. Randall; not executed yet. Publication from DD program: "Inner Coma Imaging of Comet Levy (1990c) with the Hubble Space Telescope", H.A. Weaver, M.F. A'Hearn, P.D. Feldman, C. Arpigny, W.A. Baum, J.C. Brandt, R.M. Light and J.A. Westphal, Icarus, in press (1992). ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). University of Colorado: Data analysis capabilities, student research assistants. Software facilities used in analyzing photos obtained in the IHW LSPN are available. We have just completed the IHW Atlas of Large-Scale Phenomena (Brandt, Niedner and Rahe, 1992), which contains astrometrically determined scales and orientations for over 750 images. We also have the duplicate archive for the IHW- LSPN. We have access to several VAX VMS computers, as well as PCs and image processors with the necessary software. University of Arizona: Image processing and data analysis capabilities. Groundbased data acquisition with a dedicated 0.5 -m telescope conveniently located 7 km from campus. The permanently mounted 512x512 CCD has a fild of 13 arcmin with 2 arcsec pixels at the newtonian focus and reaches Cousins R-band magnitude 20.5 in two minutes. A quick changeover, low resolution spectrograph using the same CCD is currently being made, as well as digital position readouts and a small commercial CCD auto guider. This facility will be available whenever it is needed to help identify and characterize candidate comets for this proposal, as well as to provide simultaneous groundbased data for correlation with another spatial scale. NASA/GSFC: Image Processing, Digitization of Wide-field Plates, Data Analysis. GSFC possesses a pair of Perkin-Elmer PDSA microdensitometers, which can be used to digitize photographic plates coming in from the JOCR and from the mini-network. We can calculate astrometric plate solutions at the microdensitometer and write same to FITS headers accompanying the digital data files. Astrometric measurement and image enhancement is then acccomplished via Sun computers and standard astronomical data analysis packages (IRAF, IDL, etc.). We have extensive experience in both areas as a result of our participation in the LSPN of the IHW. Joint Observatory for Cometary Research, Mini-Network: JOCR would emphasize wide- field (8x10 deg Schmidt camera) photography of comets, combined with quasi-wide- field (2 deg) CCD imaging behind a 300-mm lens and various interference filters, including and H2O+ filter (at 6205 A). The CCD imaging could be particularly useful in constructing videos showing temporal plasma-tail evolution on the quasi -large-scale. The mini-network would utilize some of the more enthusiastic contributers to the LSPN of the IHW. Candidate institutions/individuals will be chosen at a later date; some half dozen sites are envisioned. ------------------------------------------------------------------------------------ 11. Address Information Page 7 Name: John C. Brandt Category: PI Institution: University of Colorado Address: Laboratory for Atmospheric and Space Physics Campus Box 392 City: Boulder State: CO Zip Code: 80309 Country: USA Telephone: (303) 492-3215 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 4529c [ 8] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 | TARGET NAME: COMET ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: COMET, NEW ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = COMET | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=6 +/- 1 | ALL FLUX VALUES ARE SUBJECT TO 2 |F-CONT(8900)=15 +/- 8 E-17 | CHANGE UPON DISCOVERY OF NEW COMET. 3 |F-CONT(4100)=7 +/- 4 E-16 | V=TOTAL COMA MAGNITUDE. V=5 GAVE 4 |F-CONT(6100)=3 +/- 2 E-16 | FLUX OF 1E-26 ERG/S/CM2/HZ FOR WFC 5 |F-CONT(3700)=9 +/- 5 E-16 | F785LP OBS OF COMET LEVY. FLUX UNITS | | ARE ERG/CM2/S/A FOR V=6. COMET | | SHOULD HAVE V MAG < 10. S/N | | CALCULATIONS ASSUME ONLY STATISTICAL | | NOISE. | ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 9] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 DEF # WFC IMAGE WFALL # 1 2.0S # 1 GUID TOL 1" WFCIMAG SELECT 1 OF 411- E 445 OR 511-545 OR 611-644 OR 711- 745 OR 811-842 OR 911-942 Comments: X11-X14=ORBIT 1. X21-X24=ORBIT COND IF M=4,5,6,7, 2. X31-X35=ORBIT 3. X41- 8 OR 9 X45=ORBIT 4. XYZ: X = COMET MAGNITUDE, Y=ORBIT, Z=LINE ------------------------------------------------------------------------------------------------------------------------------------ 411 USE COMET F413M X3.5 20 3 SEQ 411-414 NON- WFCIMAG INT E SEQ 411-445 WITHIN 1D TARG OF OPP / 411- 445 Comments: 1ST SHORT (7S) EXPOSURE WITH CYCLE 3 / 411- F413M (CO+). LINES 411- 445 414=ORBIT 1 PREDICTED MAG=4 ------------------------------------------------------------------------------------------------------------------------------------ 412 USE COMET F413M X20 50 3 WFCIMAG E Comments: 1ST LONG (40S) EXPOSURE WITH F413M (CO+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 413 USE COMET F413M X3.5 20 3 WFCIMAG E Comments: 2ND SHORT (7S) EXPOSURE WITH F413M (CO+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 414 USE COMET F413M X20 50 3 WFCIMAG E Comments: 2ND LONG (40S) EXPOSURE WITH F413M (CO+) IN ORBIT 1 ------------------------------------------------------------------------------------------------------------------------------------ 421 USE COMET F622W X0.5 20 4 SEQ 421-424 NON- WFCIMAG INT E Comments: 1ST SHORT (1S) EXPOSURE WITH F622W (H2O+). LINES 421- 424=ORBIT 2 PREDICTED MAG=4 ------------------------------------------------------------------------------------------------------------------------------------ 422 USE COMET F622W X2 50 4 WFCIMAG E Comments: 1ST LONG (4S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 10] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 423 USE COMET F622W X0.5 20 4 WFCIMAG E Comments: 2ND SHORT (1S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ 424 USE COMET F622W X2 50 4 WFCIMAG E Comments: 2ND LONG (4S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2 ------------------------------------------------------------------------------------------------------------------------------------ 431 USE COMET F785LP X1 20 2 SEQ 431-435 NON- WFCIMAG INT E Comments: 1ST SHORT (2S) EXPOSURE WITH F785LP (CONTINUUM). LINES 431- 435=ORBIT 3 PREDICTED MAG=4 ------------------------------------------------------------------------------------------------------------------------------------ 432 USE COMET F785LP X4 50 2 WFCIMAG E Comments: 1ST LONG (8S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 433 USE COMET F785LP X1 20 2 WFCIMAG E Comments: 2ND SHORT (2S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 434 USE COMET F785LP X4 50 2 WFCIMAG E Comments: 2ND LONG (8S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 435 USE COMET F785LP X1 20 2 WFCIMAG E Comments: 3RD SHORT (2S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 441 USE COMET F413M X9 30 3 SEQ 441-445 NON- WFCIMAG INT E Comments: 1ST MEDIUM (18S) EXPOSURE WITH F413M (CO+). LINES 441- 445=ORBIT 4 PREDICTED MAG=4 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 11] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 442 USE COMET F785LP X2 30 2 WFCIMAG E Comments: 1ST MEDIUM (4S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 443 USE COMET F413M X9 30 3 WFCIMAG E Comments: 2ND MEDIUM (18S) EXPOSURE WITH F413M (CO+) IN ORBIT 4 ------------------------------------------------------------------------------------------------------------------------------------ 444 USE COMET F785LP X2 30 2 WFCIMAG E Comments: 2ND MEDIUM (4S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 445 USE COMET F413M X9 30 3 WFCIMAG E Comments: 3RD MEDIUM (18S) EXPOSURE WITH F413M (CO+). IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 511 USE COMET F413M X9 20 3 SEQ 511-514 NON- WFCIMAG INT E SEQ 511-545 WITHIN 1D TARG OF OPP / 511- 545 Comments: 1ST SHORT (18S) EXPOSURE WITH CYCLE 3 / 511- F413M (CO+). LINES 511- 545 514=ORBIT 1. PREDICTED MAG=5. ------------------------------------------------------------------------------------------------------------------------------------ 512 USE COMET F413M X40 50 3 WFCIMAG E Comments: 1ST LONG (80S) EXPOSURE WITH F413M (CO+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 513 USE COMET F413M X9 20 3 WFCIMAG E Comments: 2ND SHORT (18S) EXPOSURE WITH F413M (CO+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 514 USE COMET F413M X40 50 3 WFCIMAG E Comments: 2ND LONG (80S) EXPOSURE WITH F413M (CO+) IN ORBIT 1 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 12] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 521 USE COMET F622W X1 20 4 SEQ 521-524 NON- WFCIMAG INT E Comments: 1ST SHORT (2S) EXPOSURE WITH F622W (H2O+). LINES 521- 524=ORBIT 2 PREDICTED MAG=5 ------------------------------------------------------------------------------------------------------------------------------------ 522 USE COMET F622W X5 50 4 WFCIMAG E Comments: 1ST LONG (10S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ 523 USE COMET F622W X1 20 4 WFCIMAG E Comments: 2ND SHORT (2S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ 524 USE COMET F622W X5 50 4 WFCIMAG E Comments: 2ND LONG (10S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2 ------------------------------------------------------------------------------------------------------------------------------------ 531 USE COMET F785LP X2 20 2 SEQ 531-534 NON- WFCIMAG INT E Comments: 1ST SHORT (4S) EXPOSURE WITH F785LP (CONTINUUM). LINES 531- 534=ORBIT 3 PREDICTED MAG=5 ------------------------------------------------------------------------------------------------------------------------------------ 532 USE COMET F785LP X10 50 2 WFCIMAG E Comments: 1ST LONG (20S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 533 USE COMET F785LP X2 20 2 WFCIMAG E Comments: 2ND SHORT (4S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 534 USE COMET F785LP X10 50 2 WFCIMAG E Comments: 2ND LONG (20S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 13] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 541 USE COMET F413M X20 30 3 SEQ 541-545 NON- WFCIMAG INT E Comments: 1ST MEDIUM (40S) EXPOSURE WITH F413M (CO+). LINES 541- 545=ORBIT 4 PREDICTED MAG=5 ------------------------------------------------------------------------------------------------------------------------------------ 542 USE COMET F785LP X5 30 2 WFCIMAG E Comments: 1ST MEDIUM (10S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 543 USE COMET F413M X20 30 3 WFCIMAG E Comments: 2ND MEDIUM (40S) EXPOSURE WITH F413M (CO+) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 544 USE COMET F785LP X5 30 2 WFCIMAG E Comments: 2ND MEDIUM (10S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 545 USE COMET F413M X20 30 3 WFCIMAG E Comments: 3RD MEDIUM (40S) EXPOSURE WITH F413M (CO+) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 611 USE COMET F413M X20 20 3 SEQ 611-614 NON- WFCIMAG INT E SEQ 611-644 WITHIN 1D TARG OF OPP / 611- 644 Comments: 1ST SHORT (40S) EXPOSURE WITH CYCLE 3 / 611- F413M (CO+). LINES 611- 644 614=ORBIT 1. PREDICTED MAG=6. ------------------------------------------------------------------------------------------------------------------------------------ 612 USE COMET F413M X115 50 3 WFCIMAG E Comments: 1ST LONG (230S) EXPOSURE WITH F413M (CO+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 613 USE COMET F413M X20 20 3 WFCIMAG E Comments: 2ND SHORT (40S) EXPOSURE WITH F413M (CO+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 14] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 614 USE COMET F413M X115 50 3 WFCIMAG E Comments: 2ND LONG (230S) EXPOSURE WITH F413M (CO+) IN ORBIT 1 ------------------------------------------------------------------------------------------------------------------------------------ 621 USE COMET F622W X2 20 4 SEQ 621-624 NON- WFCIMAG INT E Comments: 1ST SHORT (4S) EXPOSURE WITH F622W (H2O+). LINES 621- 624=ORBIT 2 PREDICTED MAG=6 ------------------------------------------------------------------------------------------------------------------------------------ 622 USE COMET F622W X13 50 4 WFCIMAG E Comments: 1ST LONG (26S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ 623 USE COMET F622W X2 20 4 WFCIMAG E Comments: 2ND SHORT (4S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ 624 USE COMET F622W X13 50 4 WFCIMAG E Comments: 2ND LONG (26S) EXPOSURE WITH F622W (H2O+) IN ORBIT 2 ------------------------------------------------------------------------------------------------------------------------------------ 631 USE COMET F785LP X5 20 2 SEQ 631-634 NON- WFCIMAG INT E Comments: 1ST SHORT (10S) EXPOSURE WITH F785LP (CONTINUUM). LINES 631- 634=ORBIT 3 PREDICTED MAG=6 ------------------------------------------------------------------------------------------------------------------------------------ 632 USE COMET F785LP X25 50 2 WFCIMAG E Comments: 1ST LONG (50S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 633 USE COMET F785LP X5 20 2 WFCIMAG E Comments: 2ND SHORT (10S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 15] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 634 USE COMET F785LP X25 50 2 WFCIMAG E Comments: 2ND LONG (50S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 641 USE COMET F413M X60 30 3 SEQ 641-644 NON- WFCIMAG INT E Comments: 1ST MEDIUM (120S) EXPOSURE WITH F413M (CO+). LINES 641- 644=ORBIT 4 PREDICTED MAG=6 ------------------------------------------------------------------------------------------------------------------------------------ 642 USE COMET F785LP X13 30 2 WFCIMAG E Comments: 1ST MEDIUM (26S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 643 USE COMET F413M X60 30 3 WFCIMAG E Comments: 2ND MEDIUM (120S) EXPOSURE WITH F413M (CO+) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 644 USE COMET F785LP X13 30 2 WFCIMAG E Comments: 2ND MEDIUM (26S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 711 USE COMET F622W X6 20 4 SEQ 711-714 NON- WFCIMAG INT E SEQ 711-745 WITHIN 1D TARG OF OPP / 711- 745 Comments: 1ST SHORT (12S) EXPOSURE WITH CYCLE 3 / 711- F622W (H2O+). LINES 711- 745 714=ORBIT 1. PREDICTED MAG=7. ------------------------------------------------------------------------------------------------------------------------------------ 712 USE COMET F622W X30 50 4 WFCIMAG E Comments: 1ST LONG (60S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 713 USE COMET F622W X6 20 4 WFCIMAG E Comments: 2ND SHORT (12S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 16] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 714 USE COMET F622W X30 50 4 WFCIMAG E Comments: 2ND LONG (60S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1 ------------------------------------------------------------------------------------------------------------------------------------ 721 USE COMET F413M X150 30 3 SEQ 721-722 NON- WFCIMAG INT E Comments: 1ST MED (300S) EXPOSURE WITH F413M (CO+). LINES 721- 722=ORBIT 2 PREDICTED MAG=7 ------------------------------------------------------------------------------------------------------------------------------------ 722 USE COMET F413M X150 30 3 WFCIMAG E Comments: 2ND MED (300S) EXPOSURE WITH F413M (CO+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ 731 USE COMET F413M X60 20 3 SEQ 731-734 NON- WFCIMAG INT E Comments: 1ST SHORT (120S) EXPOSURE WITH F413M (CO+). LINES 731- 734=ORBIT 3 PREDICTED MAG=7 ------------------------------------------------------------------------------------------------------------------------------------ 732 USE COMET F785LP X30 30 2 WFCIMAG E Comments: 1ST MED (60S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 733 USE COMET F413M X60 20 3 WFCIMAG E Comments: 2ND SHORT (120S) EXPOSURE WITH F413M (CO+) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 734 USE COMET F785LP X30 30 2 WFCIMAG E Comments: 2ND MED (60S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 741 USE COMET F622W X13 30 4 SEQ 741-745 NON- WFCIMAG INT E Comments: 1ST MEDIUM (26S) EXPOSURE WITH F622W (H2O+). LINES 741- 745=ORBIT 4 PREDICTED MAG=7 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 17] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 742 USE COMET F785LP X30 30 2 WFCIMAG E Comments: 1ST MEDIUM (60S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 743 USE COMET F622W X13 30 4 WFCIMAG E Comments: 2ND MEDIUM (26S) EXPOSURE WITH F622W (H2O+) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 744 USE COMET F785LP X30 30 2 WFCIMAG E Comments: 2ND MEDIUM (60S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 745 USE COMET F622W X13 30 4 WFCIMAG E Comments: 3RD MEDIUM (26S) EXPOSURE WITH F622W (H2O+) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ 811 USE COMET F622W X13 20 4 SEQ 811-814 NON- WFCIMAG INT E SEQ 811-842 WITHIN 1D TARG OF OPP / 811- 842 Comments: 1ST SHORT (26S) EXPOSURE WITH CYCLE 3 / 811- F622W (H2O+). LINES 811- 842 814=ORBIT 1. PREDICTED MAG=8. ------------------------------------------------------------------------------------------------------------------------------------ 812 USE COMET F622W X70 50 4 WFCIMAG E Comments: 1ST LONG (140S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 813 USE COMET F622W X13 20 4 WFCIMAG E Comments: 2ND SHORT (26S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 814 USE COMET F622W X70 50 4 WFCIMAG E Comments: 2ND LONG (140S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 18] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 821 USE COMET F413M X250 30 3 SEQ 821-822 NON- WFCIMAG INT E Comments: 1ST MED (500S) EXPOSURE WITH F413M (CO+). LINES 821- 822=ORBIT 2 PREDICTED MAG=8 ------------------------------------------------------------------------------------------------------------------------------------ 822 USE COMET F413M X250 30 3 WFCIMAG E Comments: 2ND MED (500S) EXPOSURE WITH F413M (CO+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ 831 USE COMET F785LP X30 20 2 SEQ 831-834 NON- WFCIMAG INT E Comments: 1ST SHORT (60S) EXPOSURE WITH F785LP (CONTINUUM). LINES 831- 834=ORBIT 3 PREDICTED MAG=8 ------------------------------------------------------------------------------------------------------------------------------------ 832 USE COMET F785LP X130 50 2 WFCIMAG E Comments: 1ST LONG (260S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 833 USE COMET F785LP X30 20 2 WFCIMAG E Comments: 2ND SHORT (60S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 834 USE COMET F785LP X130 50 2 WFCIMAG E Comments: 2ND LONG (260S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 841 USE COMET F622W X35 30 4 SEQ 841-842 NON- WFCIMAG INT E Comments: 1ST MED (70S) EXPOSURE WITH F622W (H2O+) LINES 841- 842=ORBIT 4 PREDICTED MAG=8 ------------------------------------------------------------------------------------------------------------------------------------ 842 USE COMET F622W X35 30 2 WFCIMAG E Comments: 2ND MED (70S) EXPOSURE WITH F622W (H2O+) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 19] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 911 USE COMET F622W X35 20 4 SEQ 911-914 NON- WFCIMAG INT E SEQ 911-942 WITHIN 1D TARG OF OPP / 911- 942 Comments: 1ST SHORT (70S) EXPOSURE WITH CYCLE 3 / 911- F622W (H2O+). LINES 911- 942 914=ORBIT 1. PREDICTED MAG=9. ------------------------------------------------------------------------------------------------------------------------------------ 912 USE COMET F622W X90 30 4 WFCIMAG E Comments: 1ST MED (180S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 913 USE COMET F622W X35 20 4 WFCIMAG E Comments: 2ND SHORT (70S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1. ------------------------------------------------------------------------------------------------------------------------------------ 914 USE COMET F622W X90 30 4 WFCIMAG E Comments: 2ND MED (180S) EXPOSURE WITH F622W (H2O+) IN ORBIT 1 ------------------------------------------------------------------------------------------------------------------------------------ 921 USE COMET F413M X250 30 3 SEQ 921-922 NON- WFCIMAG INT E Comments: 1ST SHORT (500S) EXPOSURE WITH F413M (CO+). LINES 921- 922=ORBIT 2 PREDICTED MAG=9 ------------------------------------------------------------------------------------------------------------------------------------ 922 USE COMET F413M X250 30 3 WFCIMAG E Comments: 2ND SHORT (500S) EXPOSURE WITH F413M (CO+) IN ORBIT 2. ------------------------------------------------------------------------------------------------------------------------------------ 931 USE COMET F785LP X175 30 2 SEQ 931-932 NON- WFCIMAG INT E Comments: 1ST MED (350S) EXPOSURE WITH F785LP (CONTINUUM). LINES 931- 932=ORBIT 3 PREDICTED MAG=9 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4529c [ 20] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 932 USE COMET F785LP X175 30 2 WFCIMAG E Comments: 2ND MED (350S) EXPOSURE WITH F785LP (CONTINUUM) IN ORBIT 3. ------------------------------------------------------------------------------------------------------------------------------------ 941 USE COMET F622W X150 50 4 SEQ 941-942 NON- WFCIMAG INT E Comments: 1ST LONG (300S) EXPOSURE WITH F600W (H2O+). LINES 941- 942=ORBIT 4 PREDICTED MAG=9 ------------------------------------------------------------------------------------------------------------------------------------ 942 USE COMET F622W X150 50 4 WFCIMAG E Comments: 2ND LONG (300S) EXPOSURE WITH F622W (H2O+) IN ORBIT 4. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4529c [ 21] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GO ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 0.10 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category SOLAR SYSTEM ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category COMETS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GUID TOL 1"; SELECT 1 OF 411-445 OR 511-545 OR 611-644 OR 711-745 OR 811-842 OR 911-942; COND IF M=4,5,6,7,8 OR 9 SEQ 411-414 NON-INT; SEQ 411-445 WITHIN 1D; TARG OF OPP / 411-445; CYCLE 3 / 411-445; SEQ 421-424 NON-INT SEQ 431-435 NON-INT SEQ 441-445 NON-INT SEQ 511-514 NON-INT; SEQ 511-545 WITHIN 1D; TARG OF OPP / 511-545; CYCLE 3 / 511-545; SEQ 521-524 NON-INT SEQ 531-534 NON-INT SEQ 541-545 NON-INT SEQ 611-614 NON-INT; SEQ 611-644 WITHIN 1D; TARG OF OPP / 611-644; CYCLE 3 / 611-644; SEQ 621-624 NON-INT SEQ 631-634 NON-INT SEQ 641-644 NON-INT SEQ 711-714 NON-INT; SEQ 711-745 WITHIN 1D; TARG OF OPP / 711-745; CYCLE 3 / 711-745; SEQ 721-722 NON-INT SEQ 731-734 NON-INT SEQ 741-745 NON-INT SEQ 811-814 NON-INT; SEQ 811-842 WITHIN 1D; TARG OF OPP / 811-842; CYCLE 3 / 811-842; SEQ 821-822 NON-INT SEQ 831-834 NON-INT SEQ 841-842 NON-INT SEQ 911-914 NON-INT; SEQ 911-942 WITHIN 1D; TARG OF OPP / 911-942; CYCLE 3 / 911-942; SEQ 921-922 NON-INT SEQ 931-932 NON-INT SEQ 941-942 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements # F413M F622W F785LP ------------------------------------------------------------------------------------------------------------------------------------ Target Names COMET ------------------------------------------------------------------------------------------------------------------------------------