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Daily 3583



 
 
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Old April 2nd 04, 09:22 PM
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Default Daily 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 1x1, 1x2, 2x1, and 2x2 bin settings at gain=1,
and 1x1 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.


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