! Proposal 6535, submission 1 ! PI: Mohammad Heydari-Malayeri ! Received Fri Feb 16 13:57:46 EST 1996 ! From: mrosa@eso.org !# 6535.prop vers 9.9999 Fri Feb 16 17:20 CET mrosa@eso.org !# !# ---> NOTE: !# This version is final for submission !# - it has NO 14 exp/orbit overruns !# - it has the minimum of all exposures required !# !# BUT it is non-optimal because: !# - F469N and F410M cut from 50/350 to 40/300 s respectively !# - F814W filter not following the general dither pattern !# - still unused time + a few unneccesary overheads !# !# An otpimization algorithm could likely find a better solution !# !######################################################################## ! ! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! $Id: 6535,v 4.1 1997/04/16 18:41:16 pepsa Exp $ ! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! $Id: 6535,v 4.1 1997/04/16 18:41:16 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: Sleiman ! Phone: 410-338-4753 , E-mail: sleiman@stsci.edu ! ! This partially completed template was generated from a Phase I proposal. ! Name of Phase I Proposal: archive-0382.heydari-malayeri ! Date generated: Fri Dec 22 18:13:34 EST 1995 ! Proposal_Information ! Section 4 Title: Tight clusters of newly born massive stars in compact \h2 regions of the Magellanic Clouds Proposal_Category: GO Scientific_Category: HOT STARS Cycle: 6 Investigators PI_name: Mohammad Heydari-Malayeri PI_Institution: Observatoire de Paris CoI_Name: Michael Rosa CoI_Institution: Space Telescope European Coordinating Facility, European Southern Observatory Contact: ! Y or N (designate at most one contact) CoI_Name: Hans Zinnecker CoI_Institution: Wuerzburg University Contact: ! Y or N (designate at most one contact) CoI_Name: Lise Deharveng CoI_Institution: Observatoire de Marseille Contact: ! Y or N (designate at most one contact) Abstract: ! Free format text (please update) We propose high spatial resolution imaging with the HST Planetary Camera 2 in order to resolve very tight clusters of massive stars at birth in the Magellanic Clouds. These are the youngest massive stars accessible to direct observations at ultraviolet and optical wavelengths. Situated in an extremely rare category of \h2 regions in the Magellanic Clouds (diameters ranging from 4'' to 10'' only), these stars should rank among the hottest ones in these galaxies, as inferred from the exceptionally high nebular O III(4959Angstrom+5007Angstrom)/HBeta ratios. Using medium-band continuum filters, we will place the resolved components on H- R diagrams to obtain their masses and evolutionary states. Imaging in the He II 4686 Angstrom\ line will identify the hottest components of the tight clusters, and will provide estimates for the effective temperatures. Imaging in HBeta, O III, and HAlpha will allow us to correct for the extinction and for the nebular emission. Questions ! Free format text (please update) Observing_Description: We have 3 targets, 1 in the LMC and 2 in the SMC to be observed with PC2 through various narrow and medium band filters. A UBVI-like photometry will use medium-band continuum filters U (F410M), B (F467M), V (F547M) and I (F814W) in order to avoid the nebular emission lines. Comparison of the medium-band U with ``Wide U'' F300W will allow us to estimate the nebular continuum contribution and provide additional leverage in the T_eff-vs-reddening parameter space. We will in general obtain two sets of exposures (each CR split) in each filter, a short one to cover the brighter embedded stars and a longer one to obtain enough S/N on the fainter components. Note that because of extinction (1 to 3 mag V) and the anticipated range of T_eff (10000 to 60000 K), the most massive stars will generally not be the brightest objects in all filters. Narrow-band filters to be used for obtaining information about several aspects of the compact \h2 regions will be He II (F469N), O III (F502N), HBeta (F487N), and HAlpha (F656N). All this amounts to 144 exposures (each CR split) with PC2. As an example for exposure time calculations, here are those we propose for the target SMC N81. Assuming that all the 11.50 magnitude of N81 comes from two identical stars, we get V=12.25 for each of them. Using a de-reddened magnitude of 12.10, an absolute magnitude of -6.8 is derived from a distance modulus of 18.9 (Westerlund 1990, A&A Rev 2, 29). We use Eq. (6.1) of the HST WFPC2 Handbook to calculate the number of electron counts per sec. We take a B0 spectral type to estimate the filter responses, since the brightest stars have Rayleigh-Jeans slopes in our spectral range. The required monochromatic magnitudes, AB_Nu, are taken from Table 6.1, and the efficiencies of the filters, \int Q(Lambda)T(Lambda)dLambda/Lambda, from Table 6.2. We get corrected magnitudes, V_c, using the corresponding E(Lambda- V) values. The results are also cross-checked with the WFPC2 exposure time calculator on the WWW. The resulting counts per sec and maximum exposure times to stay within the 27000 e^- pix^-1 saturation level, taking into account the point spread function sampling on the PC2 chip, are detailed in columns 6 and 7 of the following Table. begincenter Table 1. Exposure time estimates for N81 endcenter begintabularcccccccc Filter & E(Lambda-V) & V_c & AB_Nu & \int Q(Lambda)T(Lambda)dLambda/Lambda & e^- sec^-1 & t (sec) & Total (min) , 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 , F300W & 0.11 & 12.41 & --0.78 & 0.00519 & 28914 & 4 & 16 , F410M & 0.08 & 12.31 & --0.45 & 0.00164 & 7392 & 15 & 17 , F467M & 0.07 & 12.28 & --0.34 & 0.00216 & 9045 & 12 & 17 , F469N & 0.06 & 12.27 & --0.34 & 0.00023 & 972 & 111 & 32 , F487N & 0.06 & 12.26 & --0.28 & 0.00029 & 1170 & 92 & 29 , F502N & 0.06 & 12.25 & --0.22 & 0.00037 & 1426 & 76 & 27 , F547M & 0.06 & 12.25 & +0.00 & 0.01224 & 38523 & 3 & 15 , F656N & 0.05 & 12.22 & +0.31 & 0.00045 & 1094 & 99 & 31 , F814W & 0.05 & 12.10 & +0.48 & 0.02000 & 30000 & 3 & 15 , endtabular vspace0.5cm Since we aim at the photometry of bright and faint targets, we envisage two sets of exposures per filter and target, long and short ones. The long sets will consist of 4 exposures, each of which is 3 times the unit exposure (column 7), or the nearest quantized value for WFPC2. This allows for CR detection and avoids blooming (at 90000 e^- pix^-1 in the central pixel for 7 e^- ADU gain). With 4 coadded exposures we will get a S/N ratio of 3 for stars 10 mag fainter than the bright ones used in Table 1. V=22.3 corresponds to typical stars of 2 M_\odot at distance moduli of 18--19 mag. In order to safeguard against saturation in the case that the brightest object is single and has bright WR-like emission lines affecting the estimated count rates in the medium and narrow filters, we add 2 (for CR detection) short exposures of ~ 20\% unit exposure. These short exposures combined will give S/N ratios of about 200 for the brightest stars and of about 5 for stars 6 mag fainter. Now we consider the effects of the nebular continuum and emission lines. The observed F(HBeta) = 1.45 * 10^-11 erg s^-1 cm^-2 is distributed over pi.6''.3^2=125 arcsec^2. This gives 2.3 * 10^-16 erg s^-1 cm^-2 pix^-1 at the PC2 resolution. In an \h2 region of T_e=13000 K the nebular continuum is ~ 0.8 * 10^-3 of the HBeta line emission in the 4000 to 6000Angstrom\ range, corresponding to ~ 2 * 10^-19 erg s^-1 cm^-2 pix^-1. This is equivalent to ~ 25.5 mag pix^- 1 or 23.8 mag per 10 typical pixels for a star. Consequently, we do not need to worry about the nebular continuum. The nebular emission line images HAlpha, HBeta, and O III will be at least 1200 times brighter, and thus will be about as bright as the B8 stars. The total exposure times, in minutes, requested for each filter, are given in column 8 of the above Table 1. These estimates include the 3 min overhead per exposure for the 5 consecutive exposures. The total orbit estimate for N81 is then obtained using the 7.5 or 6 min GS ACQ overheads and limiting the number of exposures to 14 per orbit. This amounts to 4 orbits. The two other targets, N88 and N159-5, will require 5 orbits each since they need comparatively longer exposure times due to their higher extinctions. Real_Time_Justification: None None Calibration_Justification: ! Move appropriate text from Real_Time_Justification Additional_Comments: Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: LMC-N159-5 Alternate_Names: Description: EXT-CLUSTER, OB Association Position: RA=05H 40M 04.88S +/- 0.1S, DEC=-69D 44' 37.0" +/- 0.5", PLATE-ID=06B0 Equinox: J2000.0 Flux: V=12.5+/-0.5, B-V=0.78 Comments: THIGHT STELLAR CLUSTER, VMAG TOTAL OF SEVERAL POINT SOURCES Target_Number: 2 Target_Name: SMC-N81 Alternate_Names: Description: EXT-CLUSTER, OB Association Position: RA=01H 09M 13.46S +/- 0.1S, DEC=-73D 11' 37.8" +/- 0.5", PLATE-ID=06B1 Equinox: J2000.0 Flux: V=11.54+/-0.02, B-V=0.06 Comments: THIGHT STELLAR CLUSTER, VMAG TOTAL OF SEVERAL POINT SOURCES Target_Number: 3 Target_Name: SMC-N88 Alternate_Names: Description: EXT-CLUSTER, OB Association Position: RA=01H 24M 08.76S +/- 0.1S, DEC=-73D 09' 05.8" +/- 0.5", PLATE-ID=02I5 Equinox: J2000.0 Flux: V=11.4+/-0.5, B-V=0.65 Comments: THIGHT STELLAR CLUSTER, VMAG TOTAL OF SEVERAL POINT SOURCES Visits !------------> Visit_Number: 1 Visit_Requirements: On_Hold_Comments: Visit_Comments: ! ! First dither position for all filters, 2 short, 2 long exposures ! Exposure_Number: 100 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 20S Exposure_Number: 101 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 100 Exposure_Number: 102 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 0.8S Special_Requirements: SAME POS AS 100 Exposure_Number: 103 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 12S Special_Requirements: SAME POS AS 100 Exposure_Number: 104 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 18S Special_Requirements: SAME POS AS 100 Exposure_Number: 105 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 100 Exposure_Number: 106 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 2.3S Special_Requirements: SAME POS AS 100 Exposure_Number: 107 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 30S Special_Requirements: SAME POS AS 100 Exposure_Number: 108 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 23S Special_Requirements: SAME POS AS 100 Exposure_Number: 109 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 100 Exposure_Number: 110 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 0.6S Special_Requirements: SAME POS AS 100 Exposure_Number: 111 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 8S Special_Requirements: SAME POS AS 100 Exposure_Number: 112 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Number_of_Iterations: 1 Time_Per_Exposure: .8S Special_Requirements: SAME POS AS 100 Exposure_Number: 113 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 230S Special_Requirements: SAME POS AS 100 Exposure_Number: 114 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 16S Special_Requirements: SAME POS AS 100 Exposure_Number: 115 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 3S Special_Requirements: SAME POS AS 100 Exposure_Number: 116 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 40S Special_Requirements: SAME POS AS 100 ! ! Second dither position for all filters, 2 short, 2 long, exposures ! Exposure_Number: 120 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 20S Special_Requirements: POS TARG +0.2505, +0.2505 Comments: Implementing a default dither for filter sequence Exposure_Number: 121 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 120 Exposure_Number: 122 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 0.8S Special_Requirements: SAME POS AS 120 Exposure_Number: 123 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 12S Special_Requirements: SAME POS AS 120 Exposure_Number: 124 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 18S Special_Requirements: SAME POS AS 120 Exposure_Number: 125 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 120 Exposure_Number: 126 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 2.3S Special_Requirements: SAME POS AS 120 Exposure_Number: 127 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 35S Special_Requirements: SAME POS AS 120 Exposure_Number: 128 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 23S Special_Requirements: SAME POS AS 120 Exposure_Number: 129 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Number_of_Iterations: 2 Time_Per_Exposure: 10S Special_Requirements: SAME POS AS 120 Exposure_Number: 130 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 120 Exposure_Number: 131 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 0.6S Special_Requirements: SAME POS AS 120 Exposure_Number: 132 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 8S Special_Requirements: SAME POS AS 120 Exposure_Number: 133 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 16S Special_Requirements: SAME POS AS 120 Exposure_Number: 134 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 230S Special_Requirements: SAME POS AS 120 Exposure_Number: 135 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 3S Special_Requirements: SAME POS AS 120 Exposure_Number: 136 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 40S Special_Requirements: SAME POS AS 120 Exposure_Number: 137 Target_Name: LMC-N159-5 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Number_of_Iterations: 1 Time_Per_Exposure: .8S Special_Requirements: SAME POS AS 120 ! ! -----> ! Visit_Number: 2 Visit_Requirements: On_Hold_Comments: Visit_Comments: ! ! First dither position for all filters, 2 short, 2 long exposures ! Exposure_Number: 200 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 20S Exposure_Number: 201 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 200 Exposure_Number: 202 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 0.8S Special_Requirements: SAME POS AS 200 Exposure_Number: 203 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 12S Special_Requirements: SAME POS AS 200 Exposure_Number: 204 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 18S Special_Requirements: SAME POS AS 200 Exposure_Number: 205 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 200 Exposure_Number: 206 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 2.3S Special_Requirements: SAME POS AS 200 Exposure_Number: 207 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 30S Special_Requirements: SAME POS AS 200 Exposure_Number: 208 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 23S Special_Requirements: SAME POS AS 200 Exposure_Number: 209 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 200 Exposure_Number: 210 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 0.6S Special_Requirements: SAME POS AS 200 Exposure_Number: 211 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 8S Special_Requirements: SAME POS AS 200 Exposure_Number: 212 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Number_of_Iterations: 1 Time_Per_Exposure: .8S Special_Requirements: SAME POS AS 200 Exposure_Number: 213 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 230S Special_Requirements: SAME POS AS 200 Exposure_Number: 214 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 16S Special_Requirements: SAME POS AS 200 Exposure_Number: 215 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 3S Special_Requirements: SAME POS AS 200 Exposure_Number: 216 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 40S Special_Requirements: SAME POS AS 200 ! ! Second dither position for all filters, 2 short, 2 long, exposures ! Exposure_Number: 220 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 20S Special_Requirements: POS TARG +0.2505,+0.2505 Comments: Implementing a default dither for filter sequence Exposure_Number: 221 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 220 Exposure_Number: 222 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 0.8S Special_Requirements: SAME POS AS 220 Exposure_Number: 223 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 12S Special_Requirements: SAME POS AS 220 Exposure_Number: 224 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 18S Special_Requirements: SAME POS AS 220 Exposure_Number: 225 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 220 Exposure_Number: 226 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 2.3S Special_Requirements: SAME POS AS 220 Exposure_Number: 227 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 35S Special_Requirements: SAME POS AS 220 Exposure_Number: 228 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 23S Special_Requirements: SAME POS AS 220 Exposure_Number: 229 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Number_of_Iterations: 2 Time_Per_Exposure: 10S Special_Requirements: SAME POS AS 220 Exposure_Number: 230 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 220 Exposure_Number: 231 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 0.6S Special_Requirements: SAME POS AS 220 Exposure_Number: 232 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 8S Special_Requirements: SAME POS AS 220 Exposure_Number: 233 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 16S Special_Requirements: SAME POS AS 220 Exposure_Number: 234 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 230S Special_Requirements: SAME POS AS 220 Exposure_Number: 235 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 3S Special_Requirements: SAME POS AS 220 Exposure_Number: 236 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 40S Special_Requirements: SAME POS AS 220 Exposure_Number: 237 Target_Name: SMC-N81 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Number_of_Iterations: 1 Time_Per_Exposure: .8S Special_Requirements: SAME POS AS 220 ! ! ----> ! Visit_Number: 3 Visit_Requirements: On_Hold_Comments: Visit_Comments: ! ! First dither position for all filters, 1 short, 2 long exposures ! Exposure_Number: 300 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 1 Time_Per_Exposure: 20S Exposure_Number: 301 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 300 Exposure_Number: 302 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 1 Time_Per_Exposure: 0.8S Special_Requirements: SAME POS AS 300 Exposure_Number: 303 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 12S Special_Requirements: SAME POS AS 300 Exposure_Number: 304 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 1 Time_Per_Exposure: 18S Special_Requirements: SAME POS AS 300 Exposure_Number: 305 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 300 Exposure_Number: 306 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 1 Time_Per_Exposure: 2.3S Special_Requirements: SAME POS AS 300 Exposure_Number: 307 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 35S Special_Requirements: SAME POS AS 300 Exposure_Number: 308 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 1 Time_Per_Exposure: 23S Special_Requirements: SAME POS AS 300 Exposure_Number: 309 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 300 Exposure_Number: 310 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 1 Time_Per_Exposure: 0.6S Special_Requirements: SAME POS AS 300 Exposure_Number: 311 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 8S Special_Requirements: SAME POS AS 300 Exposure_Number: 312 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 1 Time_Per_Exposure: 16S Special_Requirements: SAME POS AS 300 Exposure_Number: 313 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 230S Special_Requirements: SAME POS AS 300 Exposure_Number: 314 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 1 Time_Per_Exposure: 3S Special_Requirements: SAME POS AS 300 Exposure_Number: 315 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 40S Special_Requirements: SAME POS AS 300 Exposure_Number: 316 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: SAME POS AS 300 ! ! Second dither position for all filters, 1 short, 2 long exposures ! Exposure_Number: 320 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 1 Time_Per_Exposure: 20S Special_Requirements: POS TARG +0.2505,+0.2505 Comments: Implementing a default dither for filter sequence Exposure_Number: 321 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F656N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 320 Exposure_Number: 322 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 1 Time_Per_Exposure: 0.8S Special_Requirements: SAME POS AS 320 Exposure_Number: 323 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F300W Number_of_Iterations: 2 Time_Per_Exposure: 12S Special_Requirements: SAME POS AS 320 Exposure_Number: 324 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 1 Time_Per_Exposure: 18S Special_Requirements: SAME POS AS 320 Exposure_Number: 325 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F487N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 320 Exposure_Number: 326 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 2 Time_Per_Exposure: 35S Special_Requirements: SAME POS AS 320 Exposure_Number: 327 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F467M Number_of_Iterations: 1 Time_Per_Exposure: 2.3S Special_Requirements: SAME POS AS 320 Exposure_Number: 328 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F814W Number_of_Iterations: 1 Time_Per_Exposure: 10S Special_Requirements: SAME POS AS 320 ! Exposure_Number: 329 ! not yet fiddled in ! Target_Name: SMC-N88 ! Config: WFPC2 ! Opmode: IMAGE ! Aperture: PC1-FIX ! Sp_Element: F814W !Number_of_Iterations: 2 ! Time_Per_Exposure: .8S !Special_Requirements: SAME POS AS 320 Exposure_Number: 330 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 1 Time_Per_Exposure: 23S Special_Requirements: SAME POS AS 320 Exposure_Number: 331 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F469N Number_of_Iterations: 2 Time_Per_Exposure: 300S Special_Requirements: SAME POS AS 320 Exposure_Number: 332 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 1 Time_Per_Exposure: 0.6S Special_Requirements: SAME POS AS 320 Exposure_Number: 333 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F547M Number_of_Iterations: 2 Time_Per_Exposure: 8S Special_Requirements: SAME POS AS 320 Exposure_Number: 334 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 1 Time_Per_Exposure: 16S Special_Requirements: SAME POS AS 320 Exposure_Number: 335 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F502N Number_of_Iterations: 2 Time_Per_Exposure: 230S Special_Requirements: SAME POS AS 320 Exposure_Number: 336 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 1 Time_Per_Exposure: 3S Special_Requirements: SAME POS AS 320 Exposure_Number: 337 Target_Name: SMC-N88 Config: WFPC2 Opmode: IMAGE Aperture: PC1-FIX Sp_Element: F410M Number_of_Iterations: 2 Time_Per_Exposure: 40S Special_Requirements: SAME POS AS 320 Data_Distribution ! Defaults indicated; change if desired Medium: 8MM ! 8MM or 6250BPI or 1600BPI Blocking_Factor: 10 ! 10 or 1 Ship_To: PI_Address ! STSCI or PI_Address or ! PI Address from Phase I is: ! 61 Avenue de l'Observatoire ! Paris ! F-75014 Ship_Via: UPS ! UPS (2-day) or OVERNIGHT ! Overnight shipping done at PI expense Recipient_Email: ! Needed if Ship_To: is not PI_Address !!