NASA Hubble Space Telescope Daily Report # 3559

HUBBLE SPACE TELESCOPE – Continuing to collect World Class Science

DAILY REPORT # 3559

PERIOD COVERED: DOY 56

OBSERVATIONS SCHEDULED

ACS/HRC/WFC 10059

CCD Daily Monitor

This program consists of basic tests to monitor, the read noise, the
development
of hot pixels and test for any source of noise in ACS CCD detectors. This
programme will be executed once a day for the entire lifetime of ACS.

NICMOS 8791

NICMOS Post-SAA calibration – CR Persistence Part 2

A new procedure proposed to alleviate the CR-persistence problem of NICMOS.
Dark
frames will be obtained immediately upon exiting the SAA contour 23, and
every
time a NICMOS exposure is scheduled within 50 minutes of coming out of the
SAA.
The darks will be obtained in parallel in all three NICMOS Cameras. The
POST-SAA
darks will be non-standard reference files available to users with a
USEAFTER
date/time mark. The keyword ‘USEAFTER=date/time’ will also be added to the
header of each POST-SAA DARK frame. The keyword must be populated with the
time,
in addition to the date, because HST crosses the SAA ~8 times per day so
each
POST-SAA DARK will need to have the appropriate time specified, for users to
identify the ones they need. Both the raw and processed images will be
archived
as POST-SAA DARKSs. Generally we expect that all NICMOS science/calibration
observations started within 50 minutes of leaving an SAA will need such maps
to
remove the CR persistence from the science images. Each observation will
need
its own CRMAP, as different SAA passages leave different imprints on the
NICMOS
detectors.

NICMOS 9750

The Galactic Bulge Deep Field: A Planetary Transit Survey and Very Deep
Stellar
Mass Function

We propose to observe a Galactic bulge field continuously with ACS/WFC over
a
7-day period. We will monitor ~167, 000 F, G, and K dwarfs down to V=23, in
order to detect transits by orbiting Jovian planets. If the frequency of
"hot
Jupiters" is similar to that in the solar neighborhood, we will detect over
100
planets, more than doubling the number of extrasolar planets known. For the
brighter stars with transits, we will confirm the planetary nature of the
companions through radial- velocity measurements using the 8-m VLT. We will
determine the metallicities of most of the planet-bearing stars as well as a
control sample, through follow-up VLT spectroscopy. The metallicities of the
target stars range over more than 1.5 dex, allowing for a determination of
the
dependence of planet frequency upon metallicity–a crucial element in
understanding planet formation. We will be able to discriminate between the
equally numerous disk and bulge stars via proper motions. Hence we will
determine, for the first time, the frequencies of planets in two entirely
different stellar populations. We will also determine for the first time the
distribution of planetary radii for extrasolar planets for both these
populations. Parallel observations with NICMOS will provide ultra-deep
near-infrared images of a nearby bulge field, which will be used to
determine
the stellar luminosity and mass functions down to the brown-dwarf regime.
The
data will also be useful for a variety of spinoff projects, including a
census
of variable stars and of hot white dwarfs in the bulge, and the metallicity
distribution of bulge dwarfs.

STIS/CCD 10017

CCD Dark Monitor-Part 1

Monitor the darks for the STIS CCD.

STIS/CCD 10019

CCD Bias Monitor – Part 1

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.

STIS/CCD 10085

STIS Pure Parallel Imaging Program: Cycle 12

This is the default archival pure parallel program for STIS during cycle 12.

WFPC2 10070

WFPC2 CYCLE 12 Supplemental Darks Part 2/3

This dark calibration program obtains 3 dark frames every day to provide
data
for monitoring and characterizing the evolution of hot pixels.

WFPC2 10084

WFII parallel archive proposal

This is the 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 2002 Parallels Working Group.

FLIGHT OPERATIONS SUMMARY:

Significant Spacecraft Anomalies: (The following are preliminary reports of
potential non-nominal performance that will be investigated.) None

COMPLETED OPS REQs:
17088-0 Off-line +DD and +CC SPAs @056/1614z

OPS NOTES EXECUTED:
1203-0 Turnoff ground system limit for Gyro good counts mnemonics
@056/1356z
1160-2 Default configuration for TLMDIAGs @056/1617z

                         SCHEDULED     SUCCESSFUL    FAILURE TIMES
FGS GSacq             4                         4
FGS REacq             12                       12
FHST Update           5                         5
LOSS of LOCK

SIGNIFICANT EVENTS:

Successfully completed off-line +DD and +CC SPA Trim Relays in the PCU-R and
SSM486 FSW (TRSWCC and macros) @ first opportunity 056/16:15Z (OR 17088 with
attached IP-051 and IP-053 scripts). Following the uplink, EPS SE monitored
power system operations from the MOR for two orbits to verify nominal
operation
of TRSWCC (+DD and +CC SPA Trim Relays disconnected, commanded relay order
upon Trickle Charge initiation, etc.). During the first and second orbits,
the batteries experience Trickle Charge durations of 15 minutes and 16
minutes,
respectively. EPS SEs continue close monitoring of power system
performance,
especially battery temperatures and pressures, to assess the effects of
this change.