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01 Apr 2003

HUBBLE SPACE TELESCOPE

DAILY REPORT        # 3331

PERIOD COVERED: DOY 90

Part 3 of 4

WFPC2 9592

WFPC2 CYCLE 11 Standard Darks

This dark calibration program obtains dark frames every week in order
to provide data for the ongoing calibration of the CCD dark current
rate, and to monitor and characterize the evolution of hot pixels.
Over an extended period these data will also provide a monitor of
radiation damage to the CCDs. 

WFPC2 9594

WFPC2 CYCLE 11 SUPPLEMENTAL DARKS pt2/3

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

WFPC2 9595

WFPC2 CYCLE 11 SUPPLEMENTAL DARKS pt3/3

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

WFPC2 9596

WFPC2 CYCLE 11 INTERNAL MONITOR

This calibration proposal is the Cycle 11 routine internal monitor
for WFPC2, to be run weekly to monitor the health of the cameras. A
variety of internal exposures are obtained in order to provide a
monitor of the integrity of the CCD camera electronics in both bays
{gain 7 and gain 15}, a test for quantum efficiency in the CCDs, and
a monitor for possible buildup of contaminants on the CCD windows.

FGS 9603

Monitoring FGS1r's Interferometric Response as a Function of Spectral
Color

This proposal obtains reference point source Transfer Functions
{S-Curves} for FGS1r through the F583W filter and the F5ND attenuator
at the center position of the FGS1r FOV for a variety of stars with
different stellar spectral colors. The data will be added to the
library of point source interferograms that was assembled from the
Cycles 8 and 9 calibration programs. These Transfer Functions are
needed to support the analysis of GO science data for the study of
close and wide binary star systems and for determining the angular
size and shape of extended sources. This proposal observes stars that
have been observed in previous cycles to check for long term temporal
stability of the FGS1r S-curves.

This proposal monitors the cycle 10 calibration the FGS1r Lateral
Color response {using stars Latcol-A and Latcol-B}, as well as
calibrates the "Pos/Trans" bias of a star's position as determined
from Transfer mode and Position mode observations, and finally the
shift of a star's centroid when observed with F5ND relative to that
when observed with F583W {the cross filter shift} is calibrated
for the fainter stars in this proposal {stars brighter than V=8 can
not be observed with F583W.}

STIS 9606

CCD Dark Monitor-Part 2

Monitor the darks for the STIS CCD.

STIS 9608

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.

STIS 9615

Cycle 11 MAMA Dark Monitor

This test performs the routine monitoring of the MAMA detector dark
noise. This proposal will provide the primary means of checking on
health of the MAMA detectors systems through frequent monitoring of
the background count rate. The purpose is to look for evidence of
change in dark indicative of detector problem developing.

ACS 9658

ACS Earth Flats

This program will obtain sequences of flat field images by observing
the bright Earth. Several UV filters from the interim calibration
program {9564} require additional exposures to obtain the required
illumination. A few UV filters from this program will be repeated to
monitor for changes in the flat fields and to verify the interim
results. Since no streaks are observed in the UV, the wavelength
coverage is extended to longer wavelengths in order to explore the
severity of streaks in the flats from clouds in the FOV. We have
added exposures for the HRC in the visible filters to verify the
results derived from the L-flat campaign and to explore the severity
of streaks. We have also added exposures on WFC using the minimum
exposure time and using filters which will not saturate the brightest
WFC pixel by more than 10 times the full well. 

WFPC2/PC1 9663

Focus Monitoring

The HST focus is monitored using WFPC2/PC1. In principle ACS/HRC
should provide superior capability for monitoring the HST focus.
Since most of the HST science will shift to ACS in Cycle 11 trending
observations are continued with this program to establish the focus
of WFPC2/PC1 {and hence HST} and ACS/HRC {and WFC to a lessor degree}
using exposures over full orbits that are taken in parallel.  With
parallel exposures breathing cancels out for the relative camera
offset.
 
ACS 9673

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 

WFPC2 9676

POMS Test Proposal: WFII parallel archive proposal

used to take parallel images of random areas of the sky, following
the recommendations of the 2002 Parallels Working Group.

 - Continued -

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