NASA Hubble Space Telescope Daily Report # 3583
HUBBLE SPACE TELESCOPE – Continuing to collect World Class Science
DAILY REPORT # 3583
PERIOD COVERED: DOY 92
OBSERVATIONS SCHEDULED
ACS/HRC/WFC 10060
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.
ACS/HRC/WFC/NIC2 9753
Morphologies of EROs and Field Galaxies in SIRTF’s First Look Survey: A Rich
Early Release Dataset
The SIRTF First Look Survey {FLS} will be the first scientific program
undertaken with NASA’s next Great Observatory. The FLS provides the first
large
sample of dusty galaxies to redshifts to z < 2 and a census of large-scale
global IR properties {luminosities, color temperatures, total dust mass,
etc.}
HST observations to measure morphology are critical to provide insight into
the
mechanisms which build up the various galaxy components–disks, bulges as
well
as chaotic morphologies. We will measure quantitative morphology of fifty
extremely red objects {EROs} with targeted NICMOS pointings and hundreds of
field galaxies with ACS in parallel in the FLS. We aim to understand how
EROs
fit into the evolutionary sequence of galaxy formation. The combined HST and
SIRTF observations will provide clues into the physical processes
responsible
for generating powerful far-IR sources or, conversely, may explain why some
galaxies are inactive in the far-IR. Ancillary ground-based optical,
near-IR,
and radio data have already been obtained and DEIMOS spectra are scheduled
for
June, 2003. We waive the proprietary period for the HST observations and if
executed early in Cycle 12 the FLS will be the first complete SIRTF+HST
survey
made available to the astronomical community, well in advance of the
majority of
the Legacy observations and all of the GTO surveys.
ACS/WFC 9788
A Narrow-band Snapshot Survey of Nearby Galaxies
We propose to use ACS/WFC to conduct the first comprehensive HST narrow-band
{H-alpha + [N II]} imaging survey of the central regions of nearby
bulge-dominated disk {S0 to Sbc} galaxies. This survey will cover, at high
angular resolution extending over a large field, an unprecedented number of
galaxies representing many different environments. It will have important
applications for many astrophysical problems of current interest, and it
will be
an invaluable addition to the HST legacy. The observations will be conducted
in
snapshot mode, drawing targets from a complete sample of 145 galaxies
selected
from the Palomar spectroscopic survey of nearby galaxies. Our group will
use the
data for two primary applications. First, we will search for nuclear
emission-line disks suitable for future kinematic measurements with STIS, in
order to better constrain the recently discovered relations between black
hole
mass and bulge properties. Preliminary imaging of the type proposed here
must be
done, sooner or later, if we are to make progress in this exciting new
field.
Second, we will investigate a number of issues related to extragalactic star
formation. Specifically, we will systematically characterize the properties
of H
II regions and super star clusters on all galactic scales, from
circumnuclear
regions to the large-scale disk.
NIC1/NIC2/NIC3 8792
NICMOS Post-SAA calibration – CR Persistence Part 3
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.
STIS 9506
A SNAPSHOT SURVEY OF HIGH COLUMN DENSITY, LOW-Z LyAlpha ABSORBERS
We propose a STIS G140L spectroscopic Snapshot program of bright {V<=16.5}
AGN
not previously observed in the UV to discover new high-column density {N_H
>=
10^15 cm^-2} LyAlpha absorbers in the local Universe {z <= 0.45}. Many more
of
these high column density systems are needed because: {1} They contribute
most
of the baryons to the local IGM; {2} They include systems for which valuable
metallicity and D/H measurements can be made; {3} They include many of the
“warm-hot” absorbers, thought to be a large baryon reservoir in the local
Universe; and {4} They are most likely to be “associated” with galaxy
halos.
Because of their low-z, many of these absorbers can be located relative to
galaxies of known redshifts, allowing an immediate scientific return from
these
snapshots.
STIS 9786
The Next Generation Spectral Library
We propose to continue the Cycle 10 snapshot program to produce a Next
Generation Spectral Library of 600 stars for use in modeling the integrated
light of galaxies and clusters. This program is using the low dispersion UV
and
optical gratings of STIS. The library will be roughly equally divided among
four
metallicities, very low {[Fe/H] lt -1.5}, low {[Fe/H] -1.5 to -0.5},
near-solar
{[Fe/H] -0.3 to 0.1}, and super-solar {[Fe/H] gt 0.2}, well-sampling the
entire
HR-diagram in each bin. Such a library will surpass all extant compilations
and
have lasting archival value, well into the Next Generation Space Telescope
era.
Because of the universal utility and community-broad nature of this venture,
we
waive the entire proprietary period.
STIS/CCD 10018
CCD Dark Monitor-Part 2
Monitor the darks for the STIS CCD.
STIS/CCD 10020
CCD Bias Monitor – Part 2
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.
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.
FLIGHT OPERATIONS SUMMARY:
Significant Spacecraft Anomalies: (The following are preliminary reports of
potential non-nominal performance that will be investigated.) None
COMPLETED OPS REQs:
17116-0 Continuous Engineering Recording during Battery#2 Test (Closed @
092/19:31z
17117-0 Genslew Request for Proposal 9987 slot # 11 @ 092/19:39z
17118-0 Genslew Request for Proposal 9987 slot # 12 @ 092/19:41z
OPS NOTES EXECUTED: NONE
SCHEDULED SUCCESSFUL FAILURE TIMES
FGS GSacq 10 10
FGS REacq 05 05
FHST Update 13 13
LOSS of LOCK
SIGNIFICANT EVENTS:
Enabled OCA processing @ 092/20:43Z (OR 17107-1). Return Battery 2 to
6-battery
FSW system scheduled 093/14:19Z.
Start NCS Setpoint adjustments and NICMOS Darks via SMS (Proposal 10097),
continue through Day 103. The NICMOS Cooling System temperature setpoint,
routinely reset for seasonal adjustments, to be adjusted by +0.5 K from
nominal
at 093/01:55Z. After thermal stabilization, a series of darks begin at
095/08:46Z.
Next the temperature setpoint is adjusted by -1.0 K at 095/12/22Z. Thermal
stabilization is continued into the next SMS where further images and
completion
of the proposal occurs. Except for the normal post-SAA darks (Proposal
8792),
no other NICMOS science proposals are scheduled until the completion of
Proposal 10097.
