HUBBLE SPACE TELESCOPE - Continuing to collect World Class
Science
DAILY REPORT #4786
PERIOD COVERED: 5am February 5 - 5am February 6, 2009 (DOY
036/1000z-037/1000z)
OBSERVATIONS SCHEDULED
FGS 11942
Increasing the Accuracy of HST Astrometry with FGS1R
We propose to observe six exoplanetary system host stars
and two
planetary nebulae central stars with FGS1r. All objects
have been
previously observed under proposals GO-09233, -09969,
-10989, and
-11210. These observations will significantly extend the
time baseline,
permitting improvements in the determination of proper
motion. This
systematic motion must be removed to get at the
perturbation of
interest, either due to exoplanetary companions or the orbital
motion of
the Earth (parallax). In most cases the perturbation
orbits will also
improve. We improve either companion mass or PN parallax.
For one
target, GJ 876, theoretical dynamical modelers have
proposed an
inclination closer to 50 degrees, while FGS3 measurements
indicated an
inclination closer to 84 degrees. These new data, once
combined with our
older FGS3 data, will permit an independent remeasurement
of the
inclination of the outermost companion, and a
re-evaluation of widely
used dynamical algorithms.
S/C 4974
TRTTEST
The Transient Response Test is for the periodic
performance monitoring
of the FGS 2R servo A mechanism.
WFPC2 11967
WFPC2 Imaging of the Lockman Hole
In order to understand galaxy evolution and constrain
theoretical
models, we require both multiwavelength photometry (to
robustly
determine physical parameters such as star formation rates
and stellar
masses) and detailed morphological information. Galaxy
morphology
encodes crucial information about galaxy formation history
and the
physical processes that trigger star formation and AGN
activity, and
high-resolution imaging for large samples of galaxies is
currently only
obtainable with HST. The Lockman Hole has been the target
of extensive
multi-wavelength observations from the X-ray to the radio,
and will be
the target of the deepest wide-area blankfield thermal IR
observations
with Herschel, but currently lacks comprehensive HST
imaging. We propose
to obtain WFPC2 imaging of ~500 arcmin2 of the central
region of the
Lockman Hole in F606W and F814W, to a depth of V606~26.8
and I814~26.
This imaging is crucial in order to characterize the
sources detected at
other wavelengths.
FLIGHT OPERATIONS SUMMARY:
Significant Spacecraft Anomalies: (The following are
preliminary reports
of potential non-nominal performance that will be
investigated.)
HSTARS: (None)
COMPLETED OPS REQUEST:
18400-0 - Transient Response Trending Test (TRTT) #21
COMPLETED OPS NOTES: (None)
SCHEDULED
SUCCESSFUL
FGS
GSacq
05
05
FGS
REacq
04
04
OBAD with Maneuver
22
22
SIGNIFICANT EVENTS:
The Transient Response Trending Test (TRTT) was
successfully completed
this morning at 036/15:07