Hubble Space Telescope Daily Report #2930 – 7 Aug 2001
HUBBLE SPACE TELESCOPE
DAILY REPORT #2930
PERIOD COVERED: 0000Z (UTC) 08/06/01 – 0000Z (UTC) 08/07/01
Daily Status Report as of 219/0000Z
1.0 OBSERVATIONS SCHEDULED AND ACCOMPLISHED:
1.1 Completed Three Sets of STIS/CCD 8864 (CCD Dark Monitor-Part 2)
The Space Telescope Imaging Spectrograph (CCD) was used to monitor
the darks for the CCD. The proposal completed nominally.
1.2 Completed Four Sets of WF/PC-2 8828 (Cycle 9 Supplemental Darks pt3/3)
The WF/PC-2 was used to obtain three dark frames every day to
provide data for monitoring and characterizing the evolution of hot
pixels. The proposal completed with no reported problems.
1.3 Completed Four 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.
1.4 Completed WF/PC-2 8825 (Decontaminations and Associated
Observations 4/4)
The WF/PC-2 was used to perform the monthly decontaminations
(decons). Also included are instrument monitors tied to decons:
photometric stability check, focus monitor, pre- and post-decon internals
{bias, intflats, kspots, & darks}, UV throughput check, VISFLAT sweep, and
internal UV flat check. The proposal completed with no reported problems.
1.5 Completed Two Sets of WF/PC-2 9042 (An Archive To Detect The
Progenitors Of Massive, Core-Collapse Supernovae)
The WF/PC-s was used to search for supernovae which have massive
star progenitors. The already extensive HST archive and high-resolution
ground-based images of galaxies within ~20 Mpc enables us to resolve and
quantify their individual bright stellar content. As massive, evolved
stars are the most luminous single objects in a galaxy, the progenitors of
core-collapse supernovae should be directly detectable on pre-explosion
images. One Type II progenitor has been observed this year, and the
investigators have proposed a short, companion WFPC2 proposal to confirm
this candidate and identify a second. The observations completed nominally.
1.6 Completed Two Sets of STIS/CCD 8907 (Spectroscopic Flats C10)
The Space Telescope Imaging Spectrograph (CCD) was used to obtain
CCD flats in the spectroscopic mode. There were no reported problems.
1.7 Completed STIS/CCD 8928 (PSFs at Pseudo-Apertures {Cycle 10})
The Space Telescope Imaging Spectrograph (CCD) was used to perform
spectroscopic PSF measurements, performed for the new pseudo-apertures
located near CCD row 900, which are made available to ameliorate CCD CTE
losses. The proposal completed nominally.
1.8 Completed STIS/CCD 8856 (CCD Sensitivity Monitor C9)
The Space Telescope Imaging Spectrograph (CCD) was used to monitor
the sensitivity of each CCD grating mode to detect any change due to
contamination or other causes. The proposal also monitors the STIS focus
in an imaging mode. There were no anomalies.
1.9 Completed Two Sets of WF/PC-2 8939 (Cycle 10 Internal Monitor)
The WF/PC-2 was used to calibrate the internal monitor, to be run
weekly to monitor the health of the cameras. No problems were encountered.
1.10 Completed STIS/CCD 8865 (Bias Monitor-Part 2)
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 with no anomalous activity.
1.11 Completed STIS/CCD 8845 (Spectroscopic Flats C9)
The Space Telescope Imaging Spectrograph (CCD) was used to obtain
CCD flats in the spectroscopic mode. The observations completed with no
reported problems.
1.12 Completed STIS/CCD 9106 (The Biggest Black Holes)
The Space Telescope Imaging Spectrograph (CCD) was used to perform
searches for supermassive black holes in galaxy centers that have led to
the discoveries that {1} most or all hot galaxies contain massive dark
objects at their centers, presumably black holes; and {2} there is a tight
correlation between the black-hole mass and the luminosity-weighted
velocity dispersion of the hot component of the galaxy. This remarkable
relationship suggests a strong link between black-hole formation, AGN
activity, and galaxy formation, and once it is understood this link should
advance our understanding of all three processes. There were no reported
problems.
1.13 Completed STIS/CCD/MA1/MA2 9109 (Mapping the Chromosphere of the K
Supergiant in the Eclipsing Binary 31 Cygni)
The Space Telescope Imaging Spectrograph (CCD, ma1 and MA2) was
used to observe the chromosphere and wind of the supergiant primary in the
long-period {10.36 yr} eclipsing binary 31 Cygni. This binary has the
largest orbital separation relative to primary size {and the least
interaction} of the known Zeta Aur binaries. The observations completed
with no reported problems.
1.14 Completed Two Sets of WF/PC-2 9244 (POMS Test Proposal: WFII
Parallel Archive Proposal Continuation)
The WF/PC-2 was used to perform a generic target version of the
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 Group. The observations completed with no anomalous
activity.
1.15 Completed S/C 5582 (FOC/48 Monthly Activation (Camera Section
Only): Cycle 4)
This proposal was executed as scheduled, and no anomalies were noted.
1.16 Completed STIS/MA1/MA2 8917 (MAMA Dispersion Solution Check)
The Space Telescope Imaging Spectrograph (MA1 and MA2) was used to
determine wavelength dispersion solutions on a yearly basis as part of a
long-term monitoring program {implemented as Program 7651 in Cycle 7,
Program 8430 in Cycle 8 and 8859 in Cycle 9}. No anomalous activity was
reported.
1.17 Completed WF/PC-2/STIS/MA2 8675 (The Massive Star Content of NGC 6822)
The WF/PC-2 and the Space Telescope Imaging Spectrograph (MA2) were
used to characterize the young, coeval stellar population discovered with
WFPC2 multiband imaging in a NGC6822 star-forming region, with follow-up
spectroscopy of the massive star candidates. The proposal completed with
no reported problems.
1.18 Completed FOC/96 7923 (FOC F/96 Turn-on)
The Faint Object Camera (f/96) was used to take an internal flat
and a dark to ensure that the 30-day limit for the FOC is not
exceeded. The observations were executed as scheduled, and no anomalies
were noted.
1.19 Completed STIS/MA1 8843 (Cycle 9 MAMA Dark Measurements)
The Space Telescope Imaging Spectrograph (MA1) was used to perform
the routine monitoring of the MAMA detector dark noise. The proposal
completed nominally.
1.20 Completed STIS/CCD 9114 (SINS: The Supernova Intensive Study–
Cycle 10)
The Space Telescope Imaging Spectrograph (CCD) was used to perform
closer observations of supernovae that will create the chemical history of
the Universe, energize the interstellar gas, stiffen the spine of the
extragalactic distance scale and provide the only evidence for an
accelerating universe. A
violent encounter is underway between the fast-moving debris and the
stationary inner ring. Monitoring this interaction will help solve the
riddles of stellar evolution posed by the enigmatic three-ring system of SN
1987A. Our UV observations of Ly- Alpha emission reveal the present
location and velocity of a remarkable reverse shock that provides a unique
laboratory for studying fast shocks and a powerful tool for dissecting the
structure of the vanished star. No problems were encountered.
2.0 FLIGHT OPERATIONS SUMMARY:
2.1 Guide Star Acquisitions:
Scheduled Acquisitions: 10
Successful: 10
Scheduled Re-acquisitions: 4
Successful: 4
2.2 FHST Updates:
Scheduled: 24
Successful: 23
The update at 218/232704Z failed. The following acquisition,
however, was successful.
2.3 Operations Notes:
The SSR EDAC error counter was cleared four times per ROP SR-1A.
A TTR was written for a required re-transmit at 218/135122Z during
a NSSC-1 uplink. As a result, SI C&DH error were cleared at 218/1404Z as
directed by ROP NS-5.
Using ROP SR-1A, the 486 engineering status buffer limits were
adjusted at 218/2333Z.
The ephemeris table was uplinked at 219/0024Z in accordance with
ROP DF-07A.
3.0 SIGNIFICANT FORTHCOMING EVENTS:
Continuation of normal science observations and calibrations.
