Hubble Space Telescope Daily Report #2701 09/06/00
HUBBLE SPACE TELESCOPE
DAILY REPORT #2701
PERIOD COVERED: 0000Z (UTC) 09/05/00 – 0000Z (UTC) 09/06/00
Daily Status Report as of 250/0000Z
1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:
1.1 Completed WF/PC-2/STIS/CCD 8573 (Newborn Planets and Brown Dwarf Companions in IC 348)
The WF/PC-2 and the Space Telescope Imaging Spectrograph (CCD) were used to search for young giant planets and brown dwarfs around ~100 low-mass stars and brown dwarfs in the nearby cluster IC 348. The observations completed with no reported problems.
1.2 Completed WF/PC-2 8826 (Cycle 9 Supplemental Darks pt 1)
The WF/PC-2 was used to perform a T dark calibration program that obtains three dark frames every day in order to provide data for monitoring and characterizing the evolution of hot pixels. There were no reported anomalies.
1.3 Completed Two Sets of STIS/CCD 8837 (CCD Dark Monitor-Part 1)
The Space Telescope Imaging Spectrograph (CCD) was used to monitor the darks. The proposal completed with no reported problems.
1.4 Completed Two Sets of STIS/CCD 8664 (Structural Measurement of Globular Clusters in M31 and NGC 5128: Stalking the Fundamental Plane)
The Space Telescope Imaging Spectrograph (CCD) was used to observe in the snapshot mode to image a wide selection of individual globular clusters in two other large galaxies {M31 and NGC 5128} for measurement of their structural parameters {r_c, c, central surface brightness}. We will use these to compute their binding energies and define the FP in these two galaxies. Comparison with the Milky Way will then give us powerful new information on just how “universal” the cluster formation process was in the early protogalaxies. The observations completed with no reported problems.
1.5 Completed WF/PC-2 8601 (A Snapshot Survey of Probable Nearby Galaxies)
The WF/PC-2 was used to continue the very successful snapshot survey in order to use the high spatial resolution of HST to determine whether selected galaxies are nearby on the basis of resolution into stars, and the magnitudes and colors of the brightest stars. There were no reported problems.
1.6 Completed Two Sets of STIS/CCD 8808 (POMS Test Proposal: STIS Non-Scripted Parallel Proposal Continuation III)
The Space Telescope Imaging Spectrograph (CCD) was used to make non-scripted, parallel observations as part of a POMS test proposal. The observations completed with no anomalous activity.
1.7 Completed STIS/CCD 8848 (Dispersion Solutions)
The Space Telescope Imaging Spectrograph (CCD) was used to make wavelength dispersion solutions that will be determined on a yearly basis as part of a long-term monitoring program, and to obtain deep engineering wavecals for all CCD gratings at several wavelength centers. The observations were completed nominally.
1.8 Completed STIS/CCD/MA1 8149 (The Spectral Energy Distribution of a Neutron Star Photosphere)
The Space Telescope Imaging Spectrograph (CCD and MA1) was used to make direct measurement of the radius or mass of any neutron star outside a binary system. The proposal seeks to obtain the spectral energy distribution of the isolated neutron star, RXJ185635. The observations completed with no reported problems.
1.9 Completed Five Sets of WF/PC-2 8816 (Cycle 9 UV Earthflats)
The WF/PC-2 was used to obtain sequences of earth streak flats to improve the quality of pipeline flat fields for the WFPC2 UV filter set and in order to monitor flat field stability. There were no reported problems.
1.10 Completed Eight Sets of WF/PC-2 8805 (POMS Test Proposal: WFII Parallel Archive Proposal Continuation)
The WF/PC-2 was used to perform a generic target version of the WFPC2 Archival Pure Parallel program. The program will be used to take parallel images of random areas of the sky, following the recommendations of the Parallels Working. The proposal completed with no reported problems.
1.11 Completed STIS/CCD/MA1 8304 (Stellar Winds from Central Stars of Young Planetary Nebulae)
The Space Telescope Imaging Spectrograph (CCD and MA1) was used to observe stellar winds from central stars of planetary nebulae that are responsible for driving the dynamical expansion as well as shaping the morphology of planetary nebulae. The observations completed with no reported anomalies.
1.12 Completed STIS/CCD 8838 (Bias Monitor – Part 1)
The Space Telescope Imaging Spectrograph (CCD) was used to monitor the bias in the 1×1, 1×2, 2×1, and 2×2 bin settings at gain=1, and 1×1 at gain = 4, to build up high-S/N superbiases and track the evolution of hot columns. The proposal completed nominally.
1.13 Completed STIS/CCD/MA1 7481 (The Wind-momentum Luminosity Relationship for M31 and M33 B-supergiants)
The Space Telescope Imaging Spectrograph (CCD and MA1) was used to make observations of the B class supergiant star M-33-OB21-1. The purpose of these observations is to acquire STIS low-resolution ultraviolet spectra of early B-supergiants in galaxies M31 and M33 to determine the terminal velocities of their stellar winds. The observations were completed as planned, and no anomalies were reported.
1.14 Completed WF/PC-2 8059 (POMS Test Proposal: Targeted Parallel Archive Proposal)
The WF/PC-2 was used to observe the parallel opportunities available in the neighborhood of bright galaxies are treated in a slightly different way from the normal pure parallels. Local Group galaxies offer the opportunity for a closer look at young stellar
populations. Narrow-band images in F656N can be used both to identify young stars via their emission lines, and to map the gas distribution in star-forming regions. The observations completed nominally.
1.15 Completed STIS/CCD 8572 (Identifying Normal Galaxies at 1.3 < z < 2.5)
The Space Telescope Imaging Spectrograph (CCD) was used to perform studies of faint, distant galaxies. It is now possible to observe hundreds of galaxies out to z=1 and in the range 3 < z < 4.5, yet the redshift range 1 < z <3 remains largely unexplored. No problems were noted.
2.0 FLIGHT OPERATIONS SUMMARY:
2.1 Guide Star Acquisitions:
Scheduled Acquisitions: 7
Successful: 7
Scheduled Re-acquisitions: 9
Successful: 9
Per HSTAR 7839, the acquisition at 250/042524Z defaulted to fine lock backup on FGS-2 only when the scan step limit was exceeded on FGS-1. The three subsequent re-acquisitions also resulted in fine lock backup. Two proposals occurring during the period of the next report may have been affected: WF/PC-2 8816 and STIS 8572.
2.2 FHST Updates:
Scheduled: 16
Successful: 16
2.3 Operations Notes:
Operations were performed at the Science Institute during the day and swing shift yesterday. The same schedule will be followed today and tomorrow.
Per ROP SR-1A, the SSR EDAC error counter was cleared on four occasions.
The TDRS-H flight test was performed at 249/1546Z per an operations request.
Using ROP IC-2, SSA transmitter 2 was turned on at 249/2301 and turned off at 249/2326Z. Later, using the same ROP, the same transmitter was turned on at 250/0034Z and turned off at 250/0104Z.
3.0 SIGNIFICANT FORTHCOMING EVENTS:
Continuation of normal science observations and calibrations.
