! Proposal 5904, submission 1 ! PI: Philippe Fischer ! Received Fri Mar 17 19:10:29 EST 1995 ! From: philf@physics.att.com ! Hubble Space Telescope Cycle 5 (1995) Phase II Proposal Template ! $Id: 5904,v 7.1 1995/12/12 12:56:24 pepsa Exp $ ! ! Refer to the HST Phase II Proposal Instructions to fill this out ! ! Anything after a "!" is ignored, and may be deleted ! ! All keywords with multiple entries are comma delimited except the ! Visit_Requirements and Special_Requirements keywords which can be ! delimited with carriage returns or semi-colons, but not commas ! ! For help call your Program Coordinator: Marc Bremmer ! Phone: 410 338-4458 , E-mail: bremmer@stsci.edu ! ! This partially completed template was generated from a Phase I proposal. ! Date generated: Sat Dec 17 10:00:56 EST 1994 ! Proposal_Information ! Section 4 Title: Primordial Mass Segregation and Main Sequence Age Spreads in Young LMC Clusters Proposal_Category: GO Scientific_Category: Stellar Populations Cycle: 5 Investigators PI_name: Philippe Fischer PI_Institution: AT&T Bell Laboratories CoI_Name: Stephen Murray CoI_Institution: University of California Berkeley Contact: ! Y or N (designate at most one contact) CoI_Name: Mario Mateo CoI_Institution: University of Michigan Contact: ! Y or N (designate at most one contact) CoI_Name: Carlton Pryor CoI_Institution: Rutgers U. Contact: ! Y or N (designate at most one contact) CoI_Name: Tom Richtler CoI_Institution: University of Bonn Contact: ! Y or N (designate at most one contact) CoI_Name: Douglas Heggie CoI_Institution: University of Edinburgh Contact: ! Y or N (designate at most one contact) CoI_Name: Ram Sagar CoI_Institution: Indian Institute of Astrophysics Contact: ! Y or N (designate at most one contact) Abstract: ! Free format text (please update) Most stars form in clusters, but the details of this process remain very poorly understood. A clearer picture of cluster formation is essential to understanding star formation and the spectral, photometric, and chemical evolution of composite stellar systems. By using the high-resolution imaging capabilities of the WFPC2 to study young clusters in the Large Magellanic Cloud, we will make the first tests that will clearly distinguish between the primary competing theories of cluster formation. Images in V and I of the clusters and background fields will yield precise, well-populated luminosity functions and color-magnitude diagrams. While previous studies of LMC clusters have concentrated on determining global mass functions, primordial mass segregation and age spreads are much stronger diagnostics of cluster- formation theories. We will also use these observations to test models of high-mass stars, to improve the Cepheid distance calibration, and, in conjunction with ground-based kinematic data, to determine the initial mass function down to the low-mass cut-off. The measurement of primordial mass segregation will, for the first time, provide the initial conditions for models of cluster dynamical evolution. Questions ! Free format text (please update) Observing_Description: We will center the clusters on the PC chip. This will give us the best resolution where the crowding is the highest (i.e., the PC chip will contain the entire core region -- Table 1) and coverage out to 1.6 arcmin (4.1 arcsec/pc) for about half of each cluster with some coverage out to almost 2 arcmin. At 2 arcmin our program clusters have typically declined in surface brightness by over two orders of magnitude (Elson 1991, ApJs, 76, 185). Two bandpasses (V = F555W and I = F814W) are necessary for constructing cluster CMDs and further reducing contamination. A large range of masses is needed for the mass functions in order to maximize our chances of detecting mass segregation. A lower mass limit of 0.75 M_\odot corresponds to V = 25 and I = 24.5 (Schaerer et al. 1993, A&AS, 98, 523). According to the WFPC manual we can get Sigma(V) = Sigma(I) < 0.1 with 4*300s (gain set to 7 e^- /DN). We add 25\ to this to take into account crowding and cosmic rays (based on C. Pryor's experience with cycle 4 images) giving 5*300s in both bandpasses. These exposures will have minimum unsaturated magnitudes of 18.5 for the WF (18.0 for the PC) for a star centered on a pixel. Additionally, we need short exposures 3*5s in both bandpasses to properly measure the upper main sequence and evolved stars. Even though these objects are relatively bright, the existing ground-based data is of insufficient resolution to distinguish merged stellar images (see \S 3). Based on cycle 4 experience we feel it is essential to have a minimum of five exposures for the 300s integrations and three exposures for the 5s integrations, in order to remove cosmic rays. Background fields of 5*300s will be required to correct the luminosity functions for non-cluster members. We do not require the short exposures in the background fields since they are sufficiently uncrowded that our ground-based data will be adequate. With an overhead of 180s per exposure, the total time per cluster is 5940s plus 4800s for each background field. Since all of our targets are in CVZs with multiple intervals, we have 96 minutes of visibility per orbit for nine orbits. Therefore, based on the worksheet, we calculate that each cluster plus background field will take 2 CVZ orbits including guide star acquisition. Our clusters were chosen for their young ages, large brightnesses, smooth light distributions and relatively low background densities. Two of our clusters are known to contain Cepheids. We have ground-based fields for all the clusters which will be used for calibration and for correcting the bright end of the luminosity function. Four cluster will be a sufficient sample size to rigorously test the cluster formation theories and search for inter-cluster variations in IMFs and primordial mass segregation. The clusters chosen vary by about a factor of two in core radii and distance from the center of the LMC (Table 1). The V and I bandpasses were chosen to maximize the efficiency and utility of the observations. They are sufficiently spaced in wavelength to provide good color information. They are a better choice than B and V since, according to the WFPC manual, the system efficiency is a factor of three higher in I than B. Furthermore, the faintest stars we hope to image, 0.75 Msun\ metal-rich main sequence stars, are brighter in I than in B. Real_Time_Justification: We have ground-based imaging data for these clusters. Although shallower than our proposed data, this will be useful for calibration and supplementing the background fields. We will be obtaining radial velocity data for member stars in LMC clusters with the Rutgers Fabry-Perot spectrograph at CTIO in Jan 1995, for improved IMF determination and dynamical modeling. We also have Stroemgren photometry for the clusters which will yield mean metallicity estimates and, therefore, aid in the comparisons to stellar models. Calibration_Justification: ! Move appropriate text from Real_Time_Justification Additional_Comments: Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: NGC1711 Alternate_Names: Description: STELLAR CLUSTER, GLOBULAR CLUSTER Position: RA=4H 50M 37.4S +/- 0.1S, DEC=-69D 59' 6" +/- 1" ! RA=0H 0M 0.00S +/- 0S, ! DEC=0D 0' 0.0" +/- 0", ! PLATE-ID=0000 Equinox: 2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: ! Include at least V and B-V Comments: Target_Number: 2 Target_Name: NGC2004 Alternate_Names: Description: STELLAR CLUSTER, GLOBULAR CLUSTER Position: RA=5H 30M 40.85S +/- 0.1S, DEC=-67D 17' 17" +/- 1" Equinox: 2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: ! Include at least V and B-V Comments: Target_Number: 3 Target_Name: NGC2031 Alternate_Names: Description: STELLAR CLUSTER, GLOBULAR CLUSTER Position: RA=5H 33M 41.0S +/- 0.1S, DEC=-70D 59' 14" +/- 1" Equinox: 2000 RV_or_Z: RA_PM: Dec_PM: Epoch: Annual_Parallax: Flux: Comments: Target_Number: 4 Target_Name: NGC2157 Alternate_Names: Description: STELLAR CLUSTER, GLOBULAR CLUSTER Position: RA=5H 57M 34.75S +/- 0.1S, DEC=-69D 11' 47" +/- 1" Equinox: 2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: ! Include at least V and B-V Comments: ! This is a template for a single visit containing a single exposure ! Repeat exposure and visit blocks as needed Visits ! Section 6 Visit_Number: 1 Visit_Requirements: ! Section 7.1 PCS MODE FINE CVZ On_Hold_Comments: Visit_Comments: Exposure_Number: 1 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 2 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 3 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 4 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 5 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 6 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 8 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: For exposure 8 through 11 I would like as large an offset from the previous exposures as is possible without needing to reacquire a guide star. I would like to maintain the relative offsets (0.5 arcsec in x and y) within this set of exposures. Exposure_Number: 9 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: Exposure_Number: 10 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 11 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 Comments: Visits ! Section 6 Visit_Number: 2 Visit_Requirements: ! Section 7.1 PCS MODE FINE CVZ On_Hold_Comments: Visit_Comments: Exposure_Number: 1 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 2 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 3 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 4 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 5 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 6 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 8 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: For exposure 8 through 11 I would like as large an offset from the previous exposures as is possible without needing to reacquire a guide star. I would like to maintain the relative offsets (0.5 arcsec in x and y) within this set of exposures. Exposure_Number: 9 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: Exposure_Number: 10 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 11 ! Section 6.5 Target_Name: NGC2004 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 Comments: Visits ! Section 6 Visit_Number: 3 Visit_Requirements: ! Section 7.1 PCS MODE FINE CVZ On_Hold_Comments: Visit_Comments: Exposure_Number: 1 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 2 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 3 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 4 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 5 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 6 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 8 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: For exposure 8 through 11 I would like as large an offset from the previous exposures as is possible without needing to reacquire a guide star. I would like to maintain the relative offsets (0.5 arcsec in x and y) within this set of exposures. Exposure_Number: 9 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: Exposure_Number: 10 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 11 ! Section 6.5 Target_Name: NGC2031 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 Comments: Visits ! Section 6 Visit_Number: 4 Visit_Requirements: ! Section 7.1 PCS MODE FINE CVZ On_Hold_Comments: Visit_Comments: Exposure_Number: 1 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 2 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 3 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 4 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 5 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 6 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 8 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: For exposure 8 through 11 I would like as large an offset from the previous exposures as is possible without needing to reacquire a guide star. I would like to maintain the relative offsets (0.5 arcsec in x and y) within this set of exposures. Exposure_Number: 9 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: Exposure_Number: 10 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 11 ! Section 6.5 Target_Name: NGC2157 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 Comments: Visit_Number: 5 Visit_Requirements: ! Section 7.1 PCS MODE FINE CVZ On_Hold_Comments: Visit_Comments: Exposure_Number: 1 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 2 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.0, 0.0 Comments: Exposure_Number: 3 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 4 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 0.5,0.5 Comments: Exposure_Number: 5 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 6 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: POS TARG 0.5,0.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 8 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: For exposure 8 through 11 I would like as large an offset from the previous exposures as is possible without needing to reacquire a guide star. I would like to maintain the relative offsets (0.5 arcsec in x and y) within this set of exposures. Exposure_Number: 9 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 3 Time_Per_Exposure: 300S Special_Requirements: POS TARG 80.0,80.0 Comments: Exposure_Number: 10 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F555W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 ! Uncomment or copy exposure level special requirements needed Comments: Exposure_Number: 11 ! Section 6.5 Target_Name: NGC1711 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Wavelength: Optional_Parameters: Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: POS TARG 79.5,79.5 Comments: Data_Distribution ! Defaults indicated; change if desired Medium: 8MM ! 8MM or 6250BPI or 1600BPI Blocking_Factor: 10 ! 10 or 1 ! Only astronomers with very old 9- ! track tape drives should consider ! a blocking factor of 1 Ship_To: PI_Address ! ! Ship_Via: UPS ! UPS (2-day) or OVERNIGHT ! Overnight shipping done at PI expense Recipient_Email: ! philf@astro.lsa.umich.edu ! Needed if Ship_To: is not PI_Address ! ! Let us know what you think of this template and software! ! Please send a list of your likes and dislikes to your Program Coordinator