Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/ftp/observing/status_reports/old_reports_97/hst_status_07_10_97 Дата изменения: Thu Jul 10 14:37:55 1997 Дата индексирования: Sun Dec 23 10:50:39 2007 Кодировка: Поисковые слова: storm

HUBBLE SPACE TELESCOPE

DAILY REPORT #1916

PERIOD COVERED: 0000Z (UTC) 07/09/97 - 0000Z (UTC) 07/10/97

Daily Status Report as of 191/0000Z

1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED:

1.1 Completed Two Sets of STIS/CCD 7659 (Daily Darks to Update
Acquisition Bad Pixel Table)

The Space Telescope Imaging Spectrograph (CCD) was used to make dark
calibration images in order to update the acquisition bad pixel table.
Daily hot pixel lists can also be used for science data analysis. The
observations were executed as scheduled, and no anomalies were noted.

1.2 Completed STIS/CCD 7276 (Synoptic Monitoring of Seasonal Phenomena
on Mars)

The Space Telescope Imaging Spectrograph (CCD) was used to make
seasonal ultraviolet imaging of the planet Mars. This season includes the
formation of the north polar cap and hood system, a process which is not
well documented; the start of the classic dust storm season on Mars, when
large dust storms have often occurred; and an active cycle of small dust
storms in Hellas. These observations will complete a period of continuous
monitoring of Mars which commenced in Cycle 6. The observations were
completed as planned, and no problems were reported.

1.3 Completed Two Sets of NIC/2 7157 (NICMOS Optimum Coronagraphic Focus
Determination)

The near Infrared Camera (Camera Two) was used to make a series of
optimum coronagraphic focus determination measurements by making
observations of standard star BD+032964. This test will ascertain the
optimum position of the PAM for maximizing the local contrast ratios in
coronagraphic images. Because of the forward motion of the NICMOS optical
bench and dewar, the nominal operational position for the PAM is set (for
each camera) to achieve fraction limited focus at the image plane formed at
the detector. The observations were completed as scheduled, and no
problems were reported.

1.4 Completed Four Sets STIS/MA1/MA2 7604 (Cycle 7 MAMA Dark Measurements)

The Space Telescope Imaging Spectrograph (MA1/MA2) was used to make
MAMA dark measurements. These darks will be used in later image reductions
and also trended over the instrument's lifetime as an indicator of the
detector's degradation or damage. The observations were completed as
scheduled, and no problems were reported.

1.5 Completed WF/PC-2 6720 (The Evolution of Radio Loud Quasars II)

The WF/PC-2 was used to make observations of the radio loud quasar
MRC1301-25 as part of a mini-survey to study its evolution and morphology.
The observations were executed as scheduled, and no anomalies were noted.

1.6 Completed Two Sets of NIC/1/2/3 7676 (NICMOS-One Orbit Parallel)

The Near Infrared Camera (Cameras One, Two and Three) was used to
conduct an on-orbit calibration procedure. This was none in parallel with
the prime science observations . The procedure was completed as scheduled,
and no anomalies were noted.

1.7 Completed Six Sets of STIS/CCD 7675 (STIS Non-Scripted Parallel
Archive Proposal)

The Space Telescope Imaging Spectrograph (CCD) was used in the
parallel mode to obtain slitless spectroscopy with the G750L grating to
search for emission line galaxies at intermediate to high redshift. The
observations were completed as planned, and no anomalies were reported.

1.8 Completed STIS/MA1 7097 (STIS MAMA Vignetting, Spatial Resol. In
Spectroscopic Modes)

The Space Telescope Imaging Spectrograph (MA1) was used to make
spectrographic observations of star GD153 in order to study the systems
vignetting and spatial resolution. These observations are intended to
measure STIS relative response to a point source in the first order modes
along the slit direction. The observations were executed as scheduled, and
no anomalies were noted.

1.9 Completed WF/PC-2 7209 (Hubble Deep Field South)

The WF/PC-2 was used to make a Hubble Deep Field South observation
near the star HD118216. The propose of the deep imaging with Camera 2 is
to study the high-redshift distribution of galaxies in a Southern field.
The observations were completed as planned, and no anomalies were reported .

1.10 Completed WF/PC-2 7476 (Sakurai's Nova-Like Object: Real-Time
Monitoring of a Stellar Thermal Pulse)

The WF/PC-2 was used to make images of Sakurai's nova-like object in
order to do real-time monitoring of a stellar thermal pulse. The eruption
of Sakurai's nova-like variable in Sagittarius presents a
"once-in-a-lifetime" opportunity for real-time observations of a star
undergoing a final helium thermal pulse. The observations were completed
as planned, and no anomalies were reported.

1.11 Completed STIS/CCD 7727 (STIS Non-Scripted Parallel Archive Proposal)

The Space Telescope Imaging Spectrograph (CCD) was used to obtain
parallel slitless spectroscopy with the G750L grating to search for
emission line galaxies at intermediate to high redshift. Field galaxy
surveys have shown that, at high redshift, most galaxies have strong
emission lines, and are compact and blue. The observations were completed
as planned, and no anomalies were reported.

1.12 Completed Two Sets of NIC/1/2/3 7729 (NICMOS Short One Orbit Parallel)

The Near Infrared Camera (Cameras One, Two and Three) was used to
obtain "JHK" imaging of sky regions while another instrument was prime.
These observations were part of the short NICMOS one orbit parallel
program. The observations were executed as scheduled, and no anomalies
were noted.

1.13 Completed WF/PC-2 6441 (The Unknown Stellar Populations in
amorphous Galaxies: NGC 3077 AND M82)

The WF/PC-2 was used to make observations of the galaxy M-82
(Positions 1, 2 and 3) in order to study the unknown stellar populations in
amorphous galaxies. In a ground-based attempt at the Palomar 5-meter
telescope to determine the distances to the M-81 group galaxies using the
tip of the redgiant branch (TRGB) method, a population of at least 1700
star-like objects were discovered at I = 21-26 magnitude and V-I= 1.0
magnitude within and around the amorphous galaxy NGC 3077. The
observations were completed as scheduled, and no problems were reported.

1.14 Completed Four Sets of NIC/1/2/3 7726 (NICMOS One Orbit Parallel)

The Near Infrared Camera (Cameras One, Two and Three) was used to
make a one orbit parallel calibration observation. The observation was
executed as scheduled, and no anomalies were noted.

1.15 Completed WF/PC-2 6440 (Resolving the Radio Hotspots in Nearby
Starburst Galaxies)

The WF/PC-2 was used to make observations of the hotspots in the
nuclear regions of the nearby starbursting galaxy NGC-253 using narrow and
broad-band filters. With such data, a variety of topics relating to the
starburst can be addressed. The primary goal is to understand the nature
of the numerous discrete radio sources seen in high-resolution radio
mapping of this galaxies. The observations were completed as planned, and
no anomalies were reported.

1.16 Completed NIC/2 7331 (Near-IR Properties of the Bulges of Spiral
Galaxies)

The Near Infrared Camera (Camera Two) was used to make infrared
observations of the bulge in spiral galaxy NGC-4536. Near-IR data at HST
resolution are essential for correcting for the effect of dust and will
enable us to derive robust nuclear properties for the sample. The
observations were executed as scheduled, and no anomalies were noted.

2.0 FLIGHT OPERATIONS SUMMARY:

2.1 Guide Star Acquisitions:

Scheduled Acquisitions : 9
Successful : 9

Scheduled Reacquisitions : 6
Successful : 6

2.2 FHST Updates:

Scheduled : 18
Successful : 16

Updates at 191/0919Z and 191/0922Z failed.

2.3 Operations Notes:

The SSR Interrupt Log was dumped at 191/0153Z.

3.0 SIGNIFICANT FORTHCOMING EVENTS:

Continuation of normal science and SMOV operations.

/DMH