5854( 9) - 04/04/96 10:58 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 5854 Version: 9 Check-in Date: 04-Apr-1996 10:41:27 1.Proposal Title: Cepheid Masses ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle Cool Stars GO 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: Erika Bohm-Vitense Astronomy Department, University of Washington CoI: Nancy R.Evans Institute for Space and Terrestrial N Sciences, North York CoI: Kenneth Carpenter NASA-Goddard Space Flight Center N CoI: Rich Robinson Computer Science Corporation N ------------------------------------------------------------------------------------ 6. Abstract This is a proposal for the third (and fourth) year of a three year proposal which was accepted for the last two years. The aim is to determine Cepheid masses for binaries with Cepheids. For 2 decades the Cepheid ``mass problem" has persisted: Mass determinations from standard evolutionary tracks and those from pulsation theory gave conflicting results. The luminosity of a Cepheid with given mass depends sensitively on the amount of convective overshoot above the core of the main sequence progenitor. Hence a good mass determination for a Cepheid with known luminosity measures the amount of convective overshoot. This knowledge is important for the interpretation of HR diagrams of populous clusters in the LMC and especially for age determinations. It is also necessary for the understanding of mixing processes in stars. IUE observations have revealed a number of Cepheid binaries with blue companions whose orbits have now been determined by groundbased observations. We propose to measure the orbital radial velocities of altogether 5 blue Cepheid companions for wavelengths shorter than 2000 A. The ratio of the orbital velocity amplitudes for the binary provides the mass ratio for the stars. The effective temperature for the companion is determined from its ultraviolet energy distribution. For main sequence stars this also determines its mass. With good GHRS spectra the velocity ratio and thereby the mass ratio can be determined with an accuracy of +/- 10% ------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 2] Observations Description ------------------------ The purpose of this proposal is to measure the orbital velocities of main sequence companions for a representative sample of classical Cepheids, for which orbits are known. During Cycle 5 we would like to get second spectra for V350 Sgr and U Aql and a first spectrum for V636 Sco. The observations are spread over several observing cycles in order to observe the targets at maximum and minimum radial velocity. This will permit us to observe the whole amplitude to obtain maximum accuracy. At the same time it will eliminate any systematic errors in the velocity measurement because velocity differences will be measured. For V636 Sco and Y Car the phases of maximum or minimum Cepheid velocity will occur during Cycle 6. In Table 3 we list the observing windows for our targets. Within these windows the velocities differ from the optimum value by less than 2 km/s. The highest accuracy will be achieved if the observations can be done in the middle of these observing windows. We plan to use the GHRS with the 0.25" aperture to avoid errors due to imperfect centering in the large entrance aperture. Since high accuracy is so important for an accurate mass determination we think it is worth the extra observing time. We will use the G200M grating and observe the spectral region around 1860 Angstrom, which has some strong lines. A standard comparison star spectrum will have been obtained during cycle 4. This can then also be cross-correlated with the target star spectra to check the accuracy of the velocity determination. In order to obtain an accuracy of 10% (which we consider necessary to distinguish between different amounts of excess mixing) we require a velocity accuracy of 2 km/s. This corresponds to a wavelength accuracy of 0.2 diodes or better. Our measurements of the first Y Car spectrum have shown that this is possible, but accurate centering is necessary. This can be achieved best with the small entrance aperture. Our estimates for the necessary number of orbits takes this into consideration. The long exposures will be broken up into segments of 5 to 6 min. in order to minimize geomagnetic smearing. A wavelength calibration is necessary at the beginning and end of each exposure. We also would like to take one in the middle of one exposure in order to get some estimate of second order terms for the time dependence of the wavelength calibration. After accurate wavelength calibration exposures from the successive orbits will be coadded. Cross-correlation between them will give us some indication about the accuracy of our velocity measurements. The required exposure times were derived using the exposures from Cycle 4 with a signal to noise of about 6 and aiming at a signal to noise of about 10. Real Time Justification ----------------------- We need to observe the Cepheids at the orbital phases of maximum and minimum radial velocity as given in Table 3, in order to measure the maximum possible velocity variation. For a given measuring accuracy of +/- 2 km/s this will give the highest measuring accuracy for the ratio of the orbital velocities. Highest accuracy will be achieved if the observations can be done in the middle of the windows. The orbital periods are typically a few years. If the appropriate phase is missed we have to wait for several years. Additional groundbased radial velocity measurements have been and will be done for improved orbital determinations fore the Cepheid. These will be continued past the time of our HST observations. Calibration Justification ------------------------- We need a wavelength calibration at the beginning (or in the middle) and at the end of each exposure in order to get the wavelength accuracy needed for an accurate determination of the radial velocities. In order to accurately coadd the different subexposures we have to know the wavelength change as a funtion of time during the exposure, which means we also need at least once a wavelength calibration in the middle of one exposure in order to estimate the second order changes. Additional Comments ------------------- Since in the end all exposures of a given target to be taken over several orbits have to be coadded we have been advised by Steve Hulbert that for a given set of wavelength calibrations the exposures should be taken without interruption, which means NON-INT, in order to achieve the velocity accuracy which is needed for a success of our program. ------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 3] Data Distribution Media: 8MM Blocking Factor: 10 Ship To: *Kenneth G. Carpenter*Code 681, Bldg. 21, Rm. G22*NASA-GSFC*Greenbelt, MD 20771 Ship Via: UPS Email: hrscarpenter@tma1.gsfc.nasa.gov , ------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 4] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 3 HD183344 STAR, A0-A3 V-IV RA=19H 29M 21.42S +/-0.1S, DEC=- 2000 V=-6.0 V = 10.8+/-1 07D 02' 38.5" +/-1" B-V = 0.34+/-0.05 E(B-V) = 0.35 F-CONT(1860)=9.e-14 Comments: WE WANT TO OBSERVE THE A1V COMPANION OF THE CEPHEID U- AQL THE CEPHEID HAS V=6.5+/-1, B-V=1.10+/-0.15 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0014 0.003 0.001 4 HD173297 STAR, B6-B9.5 V-IV RA=18H 45M 17.52S +/-0.1S, DEC=- 2000 V=0.0 V = 11.5 20D 38' 50.6" +/-1", PLATE- B-V = -0.05+/-0.05 ID=060A E(B-V) = 0.30+/-0.1 F-CONT(1860)=5.0e-14 Comments: WE WANT TO OBSERVE THE B9V COMPANION OF THE CEPHEID V350 SGR, which has V=8.0+/-1 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 1987 0.0061 -0.012 0.001 5 HD156979 STAR, A0-A3 V-IV RA=17H 22M 46.47S +/-0.1S, DEC=- 2000 V=1.0 V = 11.4 45D 36' 51.30" +/-1" B-V = 0.15 E(B-V) = 0.20 F-CONT(1860)=7.e-14 Comments: WE WANT TO OBSERVE THE A0V COMPANION OF THE CEPHEID V636-SCO, WHICH HAS V-6.8+/-1, B-V=0.8+/-0.1 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.001 0.00 0.001 5854( 9) - 04/04/96 10:58 - [ 5] Visit: 01 Visit Requirements: PCS MODE F BETWEEN 11-APR-95 AND 11-AUG-95 On Hold Comments: Additional Comments: VISIT 1 for HD156979 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 111 HD156979 HRS ACQ 2.0 MIRROR-N2 1 1.8S ONBOARD ACQUISITION FOR 112-154 SEQ 111-115 NON-INT Comments: USE STEP-TIME = 0.2 S ------------------------------------------------------------------------------------------------------------------------------------ 112 HD156979 HRS ACQ/PEA 0.25 MIRROR-N2 1 5S ONBOARD ACQ FOR 113-124 KUP Comments: STEP-TIME = 0.2 S ------------------------------------------------------------------------------------------------------------------------------------ 113 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 114 ------------------------------------------------------------------------------------------------------------------------------------ 114 HD156979 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 3 5.0M SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 115 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 114 ------------------------------------------------------------------------------------------------------------------------------------ 122 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 122-124 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 123 HD156979 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 8 5.0M SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 124 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 123 ------------------------------------------------------------------------------------------------------------------------------------ 132 HD156979 HRS ACQ/PEA 0.25 MIRROR-N2 1 5S ONBOARD ACQ FOR 133-154 SEQ 132-136 NON-INT KUP ------------------------------------------------------------------------------------------------------------------------------------ 133 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 134 ------------------------------------------------------------------------------------------------------------------------------------ 134 HD156979 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 5.0M SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 136 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 134 ------------------------------------------------------------------------------------------------------------------------------------ 142 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 142-144 NON-INT Comments: CALIB FOR 143 ------------------------------------------------------------------------------------------------------------------------------------ 143 HD156979 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 8 5.0M SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 144 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 143 ------------------------------------------------------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 6] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 152 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 152-154 NON-INT Comments: CALIB FOR 153 ------------------------------------------------------------------------------------------------------------------------------------ 153 HD156979 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 8 5.0M SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 154 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 153 ------------------------------------------------------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 7] Visit: 02 Visit Requirements: PCS MODE F BETWEEN 1-AUG-95 AND 22-NOV-95 On Hold Comments: Additional Comments: VISIT 2 for HD173297 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 211 HD173297 HRS ACQ 2.0 MIRROR-N2 1 1.8S ONBOARD ACQUISITION FOR 212-254 SEQ 211-215 NON-INT Comments: USE STEP-TIME = 0.2 S ------------------------------------------------------------------------------------------------------------------------------------ 212 HD173297 HRS ACQ/PEA 0.25 MIRROR-N2 1 5S ONBOARD ACQ FOR 213-224 KUP Comments: STEP-TIME = 0.2 S ------------------------------------------------------------------------------------------------------------------------------------ 213 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 214 ------------------------------------------------------------------------------------------------------------------------------------ 214 HD173297 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 2 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 215 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 214 ------------------------------------------------------------------------------------------------------------------------------------ 222 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 222-224 NON-INT Comments: CALIB FOR 223 ------------------------------------------------------------------------------------------------------------------------------------ 223 HD173297 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 224 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 223 ------------------------------------------------------------------------------------------------------------------------------------ 232 HD173297 HRS ACQ/PEA 0.25 MIRROR-N2 1 5S ONBOARD ACQ FOR 234-254 SEQ 232-236 NON-INT KUP ------------------------------------------------------------------------------------------------------------------------------------ 234 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 235 ------------------------------------------------------------------------------------------------------------------------------------ 235 HD173297 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 5 326.4S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 236 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 235 ------------------------------------------------------------------------------------------------------------------------------------ 242 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 242-244 NON-INT Comments: CALIB FOR 243 ------------------------------------------------------------------------------------------------------------------------------------ 243 HD173297 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 244 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 243 ------------------------------------------------------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 8] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 252 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 252-254 NON-INT Comments: CALIB FOR 253 ------------------------------------------------------------------------------------------------------------------------------------ 253 HD173297 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 254 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 253 ------------------------------------------------------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 9] Visit: 03 Visit Requirements: PCS MODE F BETWEEN 2-OCT-95 AND 6-JUL-96 On Hold Comments: Additional Comments: VISIT 3 VISIT 2 for HD183344 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 311 HD183344 HRS ACQ 2.0 MIRROR-N2 1 1.8S ONBOARD ACQUISITION FOR 312-354 SEQ 311-315 NON-INT Comments: USE STEP-TIME = 0.2 S ------------------------------------------------------------------------------------------------------------------------------------ 312 HD183344 HRS ACQ/PEA 0.25 MIRROR-N2 1 5S ONBOARD ACQ FOR 313-324 KUP Comments: STEP-TIME = 0.2 S ------------------------------------------------------------------------------------------------------------------------------------ 313 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 314 ------------------------------------------------------------------------------------------------------------------------------------ 314 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 2 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 315 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 314 ------------------------------------------------------------------------------------------------------------------------------------ 322 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 322-324 NON-INT Comments: CALIB FOR 323 ------------------------------------------------------------------------------------------------------------------------------------ 323 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 324 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 27.0S Comments: CALIB FOR 323 ------------------------------------------------------------------------------------------------------------------------------------ 332 HD183344 HRS ACQ/PEA 0.25 MIRROR-N2 1 5S ONBOARD ACQ FOR 334-354 SEQ 332-336 NON-INT KUP ------------------------------------------------------------------------------------------------------------------------------------ 334 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 335 ------------------------------------------------------------------------------------------------------------------------------------ 335 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 4 408.0S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 336 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 335 ------------------------------------------------------------------------------------------------------------------------------------ 342 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 342-344 NON-INT Comments: CALIB FOR 343 ------------------------------------------------------------------------------------------------------------------------------------ 343 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 344 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 27.0S END ORBIT Comments: CALIB FOR 343 ------------------------------------------------------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 10] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 352 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 352-354 NON-INT Comments: CALIB FOR 353 ------------------------------------------------------------------------------------------------------------------------------------ 353 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 354 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 27.0S END ORBIT Comments: CALIB FOR 353 ------------------------------------------------------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 11] Visit: 04 Visit Requirements: PCS MODE F BETWEEN 2-OCT-95 AND 6-JUL-96 On Hold Comments: Additional Comments: VISIT 4 (HOPR Repeat of VISIT 3) VISIT 2 for HD183344 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 311 HD183344 HRS ACQ 2.0 MIRROR-N2 1 1.8S ONBOARD ACQUISITION FOR 312-354 SEQ 311-315 NON-INT Comments: USE STEP-TIME = 0.2 S ------------------------------------------------------------------------------------------------------------------------------------ 312 HD183344 HRS ACQ/PEA 0.25 MIRROR-N2 1 5S ONBOARD ACQ FOR 313-324 KUP Comments: STEP-TIME = 0.2 S ------------------------------------------------------------------------------------------------------------------------------------ 313 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 314 ------------------------------------------------------------------------------------------------------------------------------------ 314 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 2 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 315 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 314 ------------------------------------------------------------------------------------------------------------------------------------ 322 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 322-324 NON-INT Comments: CALIB FOR 323 ------------------------------------------------------------------------------------------------------------------------------------ 323 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 324 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 27.0S Comments: CALIB FOR 323 ------------------------------------------------------------------------------------------------------------------------------------ 332 HD183344 HRS ACQ/PEA 0.25 MIRROR-N2 1 5S ONBOARD ACQ FOR 334-354 SEQ 332-336 NON-INT KUP ------------------------------------------------------------------------------------------------------------------------------------ 334 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S Comments: CALIB FOR 335 ------------------------------------------------------------------------------------------------------------------------------------ 335 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 4 408.0S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 336 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S END ORBIT Comments: CALIB FOR 335 ------------------------------------------------------------------------------------------------------------------------------------ 342 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 342-344 NON-INT Comments: CALIB FOR 343 ------------------------------------------------------------------------------------------------------------------------------------ 343 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 344 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 27.0S END ORBIT Comments: CALIB FOR 343 ------------------------------------------------------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 12] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 352 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 30.0S SEQ 352-354 NON-INT Comments: CALIB FOR 353 ------------------------------------------------------------------------------------------------------------------------------------ 353 HD183344 HRS ACCUM 0.25 G200M 1860 STEP-PATT=5,FP- 6 380.8S SPLIT=NO ------------------------------------------------------------------------------------------------------------------------------------ 354 WAVE HRS ACCUM SC2 G200M 1860 STEP-PATT=3 1 27.0S END ORBIT Comments: CALIB FOR 353 ------------------------------------------------------------------------------------------------------------------------------------ 5854( 9) - 04/04/96 10:58 - [ 13] Summary Form for Proposal 5854 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACQ/PEAKUP ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters STEP-PATT=3 FP-SPLIT=NO STEP-PATT=5 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GO ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category Cool Stars ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS MODE F BETWEEN 11-APR-95 AND 11-AUG-95 ONBOARD ACQUISITION FOR 112-154 SEQ 111-115 NON-INT ONBOARD ACQ FOR 113-124 END ORBIT SEQ 122-124 NON-INT ONBOARD ACQ FOR 133-154 SEQ 132-136 NON-INT SEQ 142-144 NON-INT SEQ 152-154 NON-INT PCS MODE F BETWEEN 1-AUG-95 AND 22-NOV-95 ONBOARD ACQUISITION FOR 212-254 SEQ 211-215 NON-INT ONBOARD ACQ FOR 213-224 SEQ 222-224 NON-INT ONBOARD ACQ FOR 234-254 SEQ 232-236 NON-INT SEQ 242-244 NON-INT SEQ 252-254 NON-INT PCS MODE F BETWEEN 2-OCT-95 AND 6-JUL-96 ONBOARD ACQUISITION FOR 312-354 SEQ 311-315 NON-INT ONBOARD ACQ FOR 313-324 SEQ 322-324 NON-INT ONBOARD ACQ FOR 334-354 SEQ 332-336 NON-INT SEQ 342-344 NON-INT SEQ 352-354 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR-N2 G200M ------------------------------------------------------------------------------------------------------------------------------------ Target Names HD156979 WAVE HD173297 HD183344 ------------------------------------------------------------------------------------------------------------------------------------