! +====================+ ! | PED OUTPUT PRODUCT | ! +====================+ ! ! /spectre/data1/aroman/proposals/5844.prop ! Generated by PREPROCESSOR, version 6.0n ! Date: Fri Feb 23 18:46:43 EST 1996 ! Revised by Hal Weaver on 4/9/96 and submitted to the STScI on the ! same day. The mods are: ! 1) updated target 3 (HALE-BOPP-3) elements in the SSTL ! 2) changed the WFPC2 exposure times for the May observations ! 3) added two F555W images to fill the orbit associated with visit 5 ! 4) added two orbits of FOS G190H to repeat the failed observations ! made on 4/7/96; the orbits were added to visit 6 and result ! in the addition of EL lines 63, 64, 65, and 66. Proposal_Information Title: HST Investigation of a Bright, New Comet Proposal_Category: GO Scientific_Category: Solar System Cycle: 5 Investigators PI_Name: Harold Weaver PI_Institution: Space Telescope Science Institute CoI_Name: Michael A'Hearn CoI_Institution: University of Maryland, College Park Contact: CoI_Name: Claude Arpigny CoI_Institution: Universite de Liege Contact: CoI_Name: Jack Brandt CoI_Institution: University of Colorado Contact: CoI_Name: Paul Feldman CoI_Institution: Johns Hopkins University Contact: CoI_Name: Cora Randall CoI_Institution: University of Colorado Contact: Abstract: We will be investigating the newly-discovered comet Hale-Bopp [which is officially known as Comet C/1995 O1 (Hale-Bopp)]. This is an 11-orbit program using the WFPC-2, the FOS, and the GHRS. The first 7 orbits will be executed in October 1995 when the comet is ~6.5 AU from both the Sun and Earth. The imaging will be used to measure ephemeris corrections, to place constraints on the nuclear size, and to investigate the near-nucleus coma morphology. The spectra will cover the entire wavelength range from 1295 A to 3300 A and will be used to provide sensitive searches for any molecular, atomic, and ionic emissions. After the first 7 orbits are completed, we will make a final decision on the strategy for the remaining 4 orbits. This comet presents an opportunity for observations over a large range of heliocentric distances, which is a unique occurrence since HST was launched in 1990. Questions Observing_Description: Below is a description in words of what we'd like to do in this program, which takes 11 orbits. The first 2 visits take 5 orbits and were executed in October 1995. The next 2 visits take 4 orbits and should be executed in mid-March 1996. The final 2 visits take 2 orbits and should be executed during mid- to late-May 1996. We are using the RED side of the FOS for the G270H grating to improve our sensitivity. We use the BLUE side of the FOS for the G190H grating to reduce our susceptibility to grating scattered light. Within a single visit, we request that the same GS pair be used for all orbits, whenever possible. Please note that the REMEMBER OFFSET capability is used in this program. Based on our analysis of the PC images, we will want to uplink pointing corrections for the subsequent spectroscopic observations. Since we may also uplink an offset pointing prior to the PC images, the remember offset table should be setup with two entries: the first is the one to be used prior to the PC images (and which may very well be zero for the 1996 Hale-Bopp observations) and the second is the offset determined from measurements made on the PC images. Both offset commands should be executed prior to the spectrograph observation. The offset values are named "HALBPx" below and there is a pair of such values for each visit. We have defined three different target names, although all actually refer to the nucleus of Hale-Bopp, so that we can more easily keep track of which ephemeris was used for each observation. Visit #1: (September 1995) Failed tue to pointing error. orbit #1: GS ACQ + PC images (four) SEQ visits 1-2 WITHIN 24H GUIDE TOL 0.2'' for all exposures in this program At least one of the four PC images must be downlinked in real-time so that we can calculate the ephemeris error and then uplink the latter prior to the execution of the spectroscopic observations. Visit #2: (September 1995) Failed tue to pointing error. orbit #1: GS ACQ + FOS RED ACQ + FOS RED G270H orbit #2: GS REACQ + FOS RED G270H orbit #3: GS REACQ + FOS BLUE G190H orbit #4: GS REACQ + FOS BLUE G190H Visit #3 (September 1995) HRS Sepctroscopy Failed tue to pointing error. Visit #51: (October 1995) Repeat of 01 orbit #1: GS ACQ + PC images (four) SEQ visits 1-2 WITHIN 24H GUIDE TOL 0.2'' for all exposures in this program At least one of the four PC images must be downlinked in real-time so that we can calculate the ephemeris error and then uplink the latter prior to the execution of the spectroscopic observations. Visit #52: (October 1995) Repeat of 02 orbit #1: GS ACQ + FOS RED ACQ + FOS RED G270H orbit #2: GS REACQ + FOS RED G270H orbit #3: GS REACQ + FOS BLUE G190H orbit #4: GS REACQ + FOS BLUE G190H Visit #53 (Withdrawn) Repeat of 03, not to be executed. Visit #33: (mid-March 1996) orbit #1: GS ACQ + PC images (5) SEQ VISITS 33-4 WITHIN 24H GUIDE TOL 0.2'' for all exposures in this program At least one of the five PC images must be downlinked soon after the observations so that we can calculate the ephemeris error and then uplink the latter prior to the execution of the spectroscopic observations. Please note that we also want to maintain the option of uplinking an ephemeris correction prior to the first PC image. If this latter requirement creates significant scheduling difficulties, then we might drop it because the Hale-Bopp ephemeris is in pretty good shape now. Visit #4: (mid-March 1996) orbit #1: GS ACQ + FOS BLUE ACQ + FOS BLUE G190H orbit #2: GS REACQ + FOS BLUE G190H orbit #3: GS REACQ + FOS BLUE G270H Visit #5: (mid- to late-May 1996) orbit #1: GS ACQ + PC images SEQ VISITS 5-6 WITHIN 24H GUIDE TOL 0.2'' for all exposures in this program At least one of the five PC images must be downlinked so that we can calculate the ephemeris error and then uplink the latter prior to the execution of the spectroscopic observations. Please note that we also want to maintain the option of uplinking an ephemeris correction prior to the PC image. If this latter requirement creates significant scheduling difficulties, then we might drop it because the Hale-Bopp ephemeris is in pretty good shape now. Visit #6: (mid- to late-May 1996) orbit #1: GS ACQ + FOS RD G270H Real_Time_Justification: Calibration_Justification: Additional_Comments: Fixed_Targets Solar_System_Targets Target_Number: 1 Target_Name: HALE-BOPP Description: COMET HALE-BOPP Level_1: TYPE=COMET,Q=0.916702,E=0.996348,I=88.8797,O=282.4733,W=130.4405,T=01-Apr-97:09:24:46.0,EQUINOX=J2000,EPOCH=10-Oct-95 Level_2: Level_3: Window: Flux: V = 16 B-V = 0.65 V-R = 0.5 Comments: V-mag is for 0.7 arcsec diameter aperture, which is the effective size of an FOS diode. The magnitude is unlikely to be brighter than 16, but could be significantly fainter. EPHEM_UNC 50000 KM ACQ UNC 10 arcsec Target_Number: 2 Target_Name: HALE-BOPP-2 Description: COMET HALE-BOPP Level_1: TYPE=COMET, Q=0.9185010, E=0.9973992, I=89.13023, O=282.46339, W=130.31826, T = 31-Mar-97:17:11:59.4, EQUINOX=J2000, EPOCH=01-MAR-96 Level_2: Level_3: Window: Ephem_Uncert: 50000 KM Acq_Uncert: 10 " Flux: V = 15 B-V = 0.8 V-R = 0.4 Comments: These elements are used to support the Mar-Apr-95 observations and are from Yeomans Solution 22. Target_Number: 3 Target_Name: HALE-BOPP-3 Description: COMET HALE-BOPP Level_1: TYPE=COMET, Q=0.9177746, E=0.9970171, I=89.324102, O=282.467216, W=130.363356, T=31-MAR-97:19:51:30.816 EPOCH=10-APR-96 EQUINOX=J2000 Level_2: Level_3: Window: Ephem_Uncert: 100000 KM Acq_Uncert: 30 " Flux: V = 15 B-V = 0.8 V-R = 0.4 Comments: These elements are used to support the May95 observations and are from Yeomans Solution 26. Visits Visit_Number: 01 Visit_Requirements: SEQ 1-3 WITHIN 24H GUID TOL 0.2" On_Hold_Comments: Visit_Comments: Visit should be completed in one orbit. Images are used to determine the ephemeris correction for subsequent spectroscopy. The measured offset will be put in the REMEMBER OFFSET table. THIS VISIT EXECUTED AND FAILED. Exposure_Number: 11 Target_Name: HALE-BOPP Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 60S Special_Requirements: Comments: This exposure should not saturate even if the nucleus is 160 km in diameter (with an albedo of 0.04) and the coma is as bright as the mid-summer 1995 value. REQ EPHEM CORR HALBP1 Exposure_Number: 12 Target_Name: HALE-BOPP Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 300S Special_Requirements: Comments: This image should be well-exposed if Hale-Bopp has the same nuclear magnitude as P/S-W 1. Even if the coma contribution to the peak pixel intensity is zero, this exp time should give about 400 ADU (net) in the peak pixel. If the coma is as bright as its mid-summer 1995 value, then the peak pixel intensity might be as high as 2250 ADU (net). REQ EPHEM CORR HALBP1 Exposure_Number: 13 Target_Name: HALE-BOPP Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 600S Special_Requirements: Comments: This exposure should be DOWNLINKED in real-time for target acquisition analysis. Measurements made made on this image will be used to correct the pointing in the subsequent spectroscopic observations via the REMEMBER OFFSET capability. REQ EPHEM CORR HALBP1 SAVE OFFSET HALBP2 Exposure_Number: 14 Target_Name: HALE-BOPP Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 600S Special_Requirements: END ORBIT Comments: This image is the final one taken in this orbit. REQ EPHEM CORR HALBP1 Visit_Number: 02 Visit_Requirements: GUID TOL 0.2" SEQ 2-3 WITHIN 384M On_Hold_Comments: Visit_Comments: Visit should be completed in four orbits. ACQ image is used to determine if any small further correction is needed for the REMEMBER OFFSET table. We want visits 2 and 3 to be in consecutive orbits if possible. THIS VISIT EXECUTED AND FAILED. Exposure_Number: 21 Target_Name: HALE-BOPP Config: FOS/RD Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 70S Special_Requirements: Comments: Assumes V=16.3 for the comet in a 0.7" diameter FOV SAV ACQ FOR 22-34. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 22 Target_Name: HALE-BOPP Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: EXPAND END ORBIT Comments: Completes orbit 1 of visit 2. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 23 Target_Name: HALE-BOPP Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: Comments: Exp for 1st TRK 51 command. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 24 Target_Name: HALE-BOPP Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 8M Special_Requirements: EXPAND END ORBIT Comments: Exp for 2nd TRK 51 command. Completes orbit 2 of visit 2. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 25 Target_Name: HALE-BOPP Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: Comments: Exp for 1st TRK 51 command. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 26 Target_Name: HALE-BOPP Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 8M Special_Requirements: EXPAND END ORBIT Comments: Exp for 2nd TRK 51 command. Completes orbit 3 of visit 2. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 27 Target_Name: HALE-BOPP Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: Comments: Exp for 1st TRK 51 command. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 28 Target_Name: HALE-BOPP Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 8M Special_Requirements: EXPAND END ORBIT Comments: Exp for 2nd TRK 51 command. Completes orbit 4 of visit 2. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Visit_Number: 03 Visit_Requirements: GUID TOL 0.2" On_Hold_Comments: Visit_Comments: Visit should be completed in two orbits. We can't do anything for pointing verification for this visit, but we will want to uplink the offset determined from the WFPC image via the REMEMBER OFFSET table load. THIS VISIT EXECUTED AND FAILED. Exposure_Number: 31 Target_Name: HALE-BOPP Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140L Wavelength: 1295-1580 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 14M Special_Requirements: Comments: Exp for first TRK 51 command. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 32 Target_Name: HALE-BOPP Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140L Wavelength: 1295-1580 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 14M Special_Requirements: END ORBIT Comments: Exp for second TRK 51 command. Completes orbit 1 of visit 3. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 33 Target_Name: HALE-BOPP Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140L Wavelength: 1295-1580 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 14M Special_Requirements: Comments: Exp for first TRK 51 command of orbit 2 of visit 3. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 34 Target_Name: HALE-BOPP Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140L Wavelength: 1295-1580 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 14M Special_Requirements: END ORBIT Comments: Exp for second TRK 51 command of orbit 2 of visit 3. Completes orbit 2 of visit 3. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Visit_Number: 33 Visit_Requirements: GUID TOL 0.2" BETWEEN 25-Mar-1996 AND 08-Apr-1996 On_Hold_Comments: Visit_Comments: Visit should be completed in one orbit. Images are used to determine the ephemeris correction for subsequent spectroscopy. The measured offset will be put in the REMEMBER OFFSET table. VISITS 33, 4, 5, 6 recieved 30 Jan 1996. Exposure_Number: 31 Target_Name: HALE-BOPP-2 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 20S Special_Requirements: REQ EPHEM CORR HALBP3 SAVE OFFSET HALBP4 Comments: Exposure_Number: 32 Target_Name: HALE-BOPP-2 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO,DITHER-TYPE=LINE Number_of_Iterations: 1 Time_Per_Exposure: 60S Special_Requirements: REQ EPHEM CORR HALBP3 Comments: Exposure_Number: 34 Target_Name: HALE-BOPP-2 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F439W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 400S Special_Requirements: REQ EPHEM CORR HALBP3 Comments: Exposure_Number: 35 Target_Name: HALE-BOPP-2 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F439W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 400S Special_Requirements: REQ EPHEM CORR HALBP3 Comments: Visit_Number: 04 Visit_Requirements: GUID TOL 0.2" AFTER 33 BY 1 Orbits TO 1D On_Hold_Comments: Visit_Comments: Visit should be completed in three orbits. ACQ image is used to determine actual pointing. Exposure_Number: 41 Target_Name: HALE-BOPP-2 Config: FOS/BL Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 100S Special_Requirements: REQ EPHEM CORR HALBP3 USE OFFSET HALBP4 Comments: Assumes V=15.3 for the comet in a 0.7" diameter FOV Exposure_Number: 42 Target_Name: HALE-BOPP-2 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBP3 USE OFFSET HALBP4 Comments: Completes orbit 1 of visit 4. Exposure_Number: 43 Target_Name: HALE-BOPP-2 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: REQ EPHEM CORR HALBP3 USE OFFSET HALBP4 Comments: Exp for 1st TRK 51 command for orbit 2 of visit 4. Exposure_Number: 44 Target_Name: HALE-BOPP-2 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 8M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBP3 USE OFFSET HALBP4 Comments: Exp for 2nd TRK 51 command. Completes orbit 2 of visit 4. Exposure_Number: 45 Target_Name: HALE-BOPP-2 Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: REQ EPHEM CORR HALBP3 USE OFFSET HALBP4 Comments: Exp for 1st TRK 51 command for orbit 3 of visit 4. Exposure_Number: 46 Target_Name: HALE-BOPP-2 Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 8M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBP3 USE OFFSET HALBP4 Comments: Exp for 2nd TRK 51 command. Completes orbit 3 of visit 4. Visit_Number: 05 Visit_Requirements: GUID TOL 0.2" BETWEEN 10-May-1996 AND 26-May-1996 On_Hold_Comments: Visit_Comments: Visit should be completed in one orbit. Exposure_Number: 51 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: REQ EPHEM CORR HALBP5 SAVE OFFSET HALBP6 Comments: Exposure_Number: 52 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO,DITHER-TYPE=LINE Number_of_Iterations: 1 Time_Per_Exposure: 20S Special_Requirements: REQ EPHEM CORR HALBP5 Comments: Exposure_Number: 54 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F439W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 200S Special_Requirements: REQ EPHEM CORR HALBP5 Comments: Exposure_Number: 55 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F439W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 200S Special_Requirements: REQ EPHEM CORR HALBP5 Comments: Exposure_Number: 56 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 2 Time_Per_Exposure: 30S Special_Requirements: REQ EPHEM CORR HALBP5 Comments: Visit_Number: 06 Visit_Requirements: GUID TOL 0.2" AFTER 05 BY 1 Orbits TO 1D On_Hold_Comments: Visit_Comments: Visit should be completed in one orbit. Exposure_Number: 61 Target_Name: HALE-BOPP-3 Config: FOS/RD Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 30S Special_Requirements: REQ EPHEM CORR HALBP5 USE OFFSET HALBP6 Comments: Assumes V=15.3 for the comet in a 0.7" diameter FOV Exposure_Number: 62 Target_Name: HALE-BOPP-3 Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBP5 USE OFFSET HALBP6 Comments: Completes orbit 1 of visit 6. Exposure_Number: 63 Target_Name: HALE-BOPP-3 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: REQ EPHEM CORR HALBP5 USE OFFSET HALBP6 Comments: Exp for 1st TRK 51 command for orbit 2 of visit 6. Exposure_Number: 64 Target_Name: HALE-BOPP-3 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 6M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBP5 USE OFFSET HALBP6 Comments: Exp for 2nd TRK 51 command. Completes orbit 2 of visit 6. Exposure_Number: 65 Target_Name: HALE-BOPP-3 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: REQ EPHEM CORR HALBP5 USE OFFSET HALBP6 Comments: Exp for 1st TRK 51 command for orbit 3 of visit 6. Exposure_Number: 66 Target_Name: HALE-BOPP-3 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 6M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBP5 USE OFFSET HALBP6 Comments: Exp for 2nd TRK 51 command. Completes orbit 3 of visit 6. Visit_Number: 51 Visit_Requirements: SEQ 51-53 WITHIN 24H GUID TOL 0.2" On_Hold_Comments: Visit_Comments: Visit should be completed in one orbit. Images are used to determine the ephemeris correction for subsequent spectroscopy. The measured offset will be put in the REMEMBER OFFSET table. Exposure_Number: 11 Target_Name: HALE-BOPP Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 60S Special_Requirements: Comments: This exposure should not saturate even if the nucleus is 160 km in diameter (with an albedo of 0.04) and the coma is as bright as the mid-summer 1995 value. REQ EPHEM CORR HALBP1 Exposure_Number: 12 Target_Name: HALE-BOPP Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 300S Special_Requirements: Comments: This image should be well-exposed if Hale-Bopp has the same nuclear magnitude as P/S-W 1. Even if the coma contribution to the peak pixel intensity is zero, this exp time should give about 400 ADU (net) in the peak pixel. If the coma is as bright as its mid-summer 1995 value, then the peak pixel intensity might be as high as 2250 ADU (net). REQ EPHEM CORR HALBP1 THIS VISIT RE-EXECUTED THE FAILED 01. Exposure_Number: 13 Target_Name: HALE-BOPP Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 600S Special_Requirements: Comments: This exposure should be DOWNLINKED in real-time for target acquisition analysis. Measurements made made on this image will be used to correct the pointing in the subsequent spectroscopic observations via the REMEMBER OFFSET capability. REQ EPHEM CORR HALBP1 SAVE OFFSET HALBP2 Exposure_Number: 14 Target_Name: HALE-BOPP Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 600S Special_Requirements: END ORBIT Comments: This image is the final one taken in this orbit. REQ EPHEM CORR HALBP1 Visit_Number: 52 Visit_Requirements: GUID TOL 0.2" SEQ 52-53 WITHIN 384M On_Hold_Comments: Visit_Comments: Visit should be completed in four orbits. ACQ image is used to determine if any small further correction is needed for the REMEMBER OFFSET table. We want visits 2 and 3 to be in consecutive orbits if possible. THIS VISIT RE-EXECUTED THE FAILED 02. Exposure_Number: 21 Target_Name: HALE-BOPP Config: FOS/RD Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 70S Special_Requirements: Comments: Assumes V=16.3 for the comet in a 0.7" diameter FOV SAV ACQ FOR 22-34. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 22 Target_Name: HALE-BOPP Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 20M Special_Requirements: EXPAND END ORBIT Comments: Completes orbit 1 of visit 2. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 23 Target_Name: HALE-BOPP Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: Comments: Exp for 1st TRK 51 command. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 24 Target_Name: HALE-BOPP Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 8M Special_Requirements: EXPAND END ORBIT Comments: Exp for 2nd TRK 51 command. Completes orbit 2 of visit 2. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 25 Target_Name: HALE-BOPP Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: Comments: Exp for 1st TRK 51 command. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 26 Target_Name: HALE-BOPP Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 8M Special_Requirements: EXPAND END ORBIT Comments: Exp for 2nd TRK 51 command. Completes orbit 3 of visit 2. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 27 Target_Name: HALE-BOPP Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: Comments: Exp for 1st TRK 51 command. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 28 Target_Name: HALE-BOPP Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 8M Special_Requirements: EXPAND END ORBIT Comments: Exp for 2nd TRK 51 command. Completes orbit 4 of visit 2. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Visit_Number: 53 Visit_Requirements: GUID TOL 0.2" On_Hold_Comments: Visit_Comments: Visit should be completed in two orbits. We can't do anything for pointing verification for this visit, but we will want to uplink the offset determined from the WFPC image via the REMEMBER OFFSET table load. THIS VISIT WAS INTENDED TO RE-EXECUTE THE FAILED 03, BUT IT WAS DETERMINED THAT THE HRS PORTION WOULD NOT BE WORTH REPEATING, SO IT WASN'T. 53 WILL NEVER EXECUTE. Exposure_Number: 31 Target_Name: HALE-BOPP Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140L Wavelength: 1295-1580 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 14M Special_Requirements: Comments: Exp for first TRK 51 command. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 32 Target_Name: HALE-BOPP Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140L Wavelength: 1295-1580 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 14M Special_Requirements: END ORBIT Comments: Exp for second TRK 51 command. Completes orbit 1 of visit 3. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 33 Target_Name: HALE-BOPP Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140L Wavelength: 1295-1580 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 14M Special_Requirements: Comments: Exp for first TRK 51 command of orbit 2 of visit 3. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Exposure_Number: 34 Target_Name: HALE-BOPP Config: HRS Opmode: ACCUM Aperture: 2.0 Sp_Element: G140L Wavelength: 1295-1580 Optional_Parameters: FP-SPLIT=STD Number_of_Iterations: 1 Time_Per_Exposure: 14M Special_Requirements: END ORBIT Comments: Exp for second TRK 51 command of orbit 2 of visit 3. Completes orbit 2 of visit 3. REQ EPHEM CORR HALBP1 USE OFFSET HALBP2 Visit_Number: 55 Visit_Requirements: GUID TOL 0.2" On_Hold_Comments: Visit_Comments: Visit should be completed in one orbit. Exposure_Number: 51 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: REQ EPHEM CORR HALBx5 SAVE OFFSET HALBx6 Comments: Exposure_Number: 52 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F675W Wavelength: Optional_Parameters: CR-SPLIT=NO,DITHER-TYPE=LINE Number_of_Iterations: 1 Time_Per_Exposure: 20S Special_Requirements: REQ EPHEM CORR HALBx5 Comments: Exposure_Number: 54 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F439W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 200S Special_Requirements: REQ EPHEM CORR HALBx5 Comments: Exposure_Number: 55 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F439W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 1 Time_Per_Exposure: 200S Special_Requirements: REQ EPHEM CORR HALBx5 Comments: Exposure_Number: 56 Target_Name: HALE-BOPP-3 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: CR-SPLIT=NO Number_of_Iterations: 2 Time_Per_Exposure: 30S Special_Requirements: REQ EPHEM CORR HALBx5 Comments: Visit_Number: 56 Visit_Requirements: GUID TOL 0.2" AFTER 05 BY 1 Orbits TO 1D On_Hold_Comments: Visit_Comments: Visit should be completed in one orbit. Exposure_Number: 61 Target_Name: HALE-BOPP-3 Config: FOS/RD Opmode: ACQ Aperture: 4.3 Sp_Element: MIRROR Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 30S Special_Requirements: REQ EPHEM CORR HALBx5 USE OFFSET HALBx6 Comments: Assumes V=15.3 for the comet in a 0.7" diameter FOV Exposure_Number: 62 Target_Name: HALE-BOPP-3 Config: FOS/RD Opmode: ACCUM Aperture: 4.3 Sp_Element: G270H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBx5 USE OFFSET HALBx6 Comments: Completes orbit 1 of visit 6. Exposure_Number: 63 Target_Name: HALE-BOPP-3 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: REQ EPHEM CORR HALBx5 USE OFFSET HALBx6 Comments: Exp for 1st TRK 51 command for orbit 2 of visit 6. Exposure_Number: 64 Target_Name: HALE-BOPP-3 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 6M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBx5 USE OFFSET HALBx6 Comments: Exp for 2nd TRK 51 command. Completes orbit 2 of visit 6. Exposure_Number: 65 Target_Name: HALE-BOPP-3 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 24M Special_Requirements: REQ EPHEM CORR HALBx5 USE OFFSET HALBx6 Comments: Exp for 1st TRK 51 command for orbit 3 of visit 6. Exposure_Number: 66 Target_Name: HALE-BOPP-3 Config: FOS/BL Opmode: ACCUM Aperture: 4.3 Sp_Element: G190H Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 6M Special_Requirements: EXPAND END ORBIT REQ EPHEM CORR HALBx5 USE OFFSET HALBx6 Comments: Exp for 2nd TRK 51 command. Completes orbit 3 of visit 6. Data_Distribution ! Defaults indicated; change if desired Medium: 8MM Blocking_Factor: 10 Ship_To: Dr. Harold A. Weaver, 48 Bellchase Court, Pikesville, MD 21208 Ship_Via: Recipient_Email: weaver@ari.net ! Let us know what you think of this template and software! ! Please send a list of your likes and dislikes to your Program Coordinator