Space Telescope Science Institute
FGS Instrument Handbook
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Index

A
aberrations
differential velocity
optical
accuracy
summarized
ACQ-DIST
POS mode
TRANS mode
ACQ-MODE
POS mode
TRANS mode
alignment
minimizing effect of misalignment
angular diameter
non-point source
aperture
astrometer
designated
astrometry
pipeline
Position Mode
Transfer Mode
B
background
bright
measurements
noise
special, faint binary observation
subtraction, TRANS
beam decenter
S-curve
bibliography
special topics
binary star 1, 2, 3, 4, 5, 6
binary star studies
brightness
limits
C
calculation
exposure time, Position Mode
calibration
background subtraction, TRANS
color, POS 1, 2
cross-filter, POS
Cycle 7 monitoring
dark subtraction, TRANS
drift, POS
drift, TRANS
jitter, POS
jitter, TRANS
modes maintained by STScI
OFAD distortion, POS
pipeline, astrometry
plate overlay, POS
plate scale, POS
position centroid, POS
Position Mode
S-curve, TRANS
Transfer Mode
velocity, POS
centroid adjustment
Position Mode
check stars
CoarseTrack
target acquisition
Transfer Mode acquisition
color
lateral
Transfer Mode
combined mode
calibration
strategy, described
control
FGS
cosmic rays
COUNT
cross filter observation
D
dark
background
subtraction, TRANS
dark counts
FGS1R
decenter beam
FGS1R
designated astrometer
detector
description
diamter
measurement
differential velocity aberration
drift
astrometry pipeline 1, 2
calibration, POS
calibration, TRANS
exposure sequence
E
error sources
Position Mode
Transfer Mode
exposure
Position Mode
Transfer Mode
exposure sequence
drift
exposure time
calculation, Position Mode
Transfer Mode
extended source studies 1, 2, 3
F
faint binary
FES-TIME
POS mode
FGS
control
instrument overview
operating modes
science investigations suited to
web page
field
crowded, components
target
field dependence
S-curve 1, 2
field of view
position in pickel
filter
cross, calibration
spectral elements
filters
available 1, 2
fine bit error
star selector encoder
star selector encoder
fine bit error
FineLock
target acquisition
forward steering section
optical path
G
guide star
astrometry pipeline 1, 2
I
instrument
parameters
parameters, Phase II
interference
Koesters prism
interferometer
described
investigations
suitable for FGS
J
jitter
calibration, POS
calibration, TRANS
K
Koesters prism
described
L
lateral color
light path
see "optical path"
limits
brightness
target geometry
linked modes
see "combined mode"
LOCK
logsheet
proposal, examples
M
mass determination
misalignment
minimizing effect of
mixed mode
see "combined mode"
modes
bias, astrometry pipeline
described
motion
reflex
moving target 1, 2
N
NULL
O
operating modes
see "modes"
opmode
parameter, Phase Ii
optical aberrations
optical field angle distortion
calibration, POS
optical path
FGS
forward steering section
interferometer
optional parameter 1, 2
ACQ-DIST, POS mode
ACQ-DIST, TRANS mode
ACQ-MODE, POS mode
ACQ-MODE, TRANS mode
COUNT, POS mode
FESTIME, POS mode
LOCK, POS mode
NULL, POS mode
POS mode
SCANS, TRANS mode
STEP-SIZE
optional parameters
Phase II
ORIENT
orientation
target
overheads
Position Mode
Transfer Mode
P
parallax 1, 2
parameters
instrument, Phase II
optional, Phase II
Phase II
logsheet examples
proposal, preparing
photometry
Position Mode
relative
photomultiplier tube
described
PMT calibration, TRANS
pickel
described
pipeline
drift correction 1, 2
epoch level
exposure level
mode bias
Position Mode 1, 2
processing
Transfer Mode
visit level
plate overlay
calibration, POS
plate scale
calibration, POS
POS TARG
Position mode
described
Position Mode
astrometry
astrometry pipeline
bibliography
calibration
centroid adjustment
combined with Transfer
exposure
exposure time
observation planning
overheads
photometry
pipeline
pupil
proper motion 1, 2
proposal
logsheet examples
Phase II
pupil
Position Mode
R
reference stars
references
special topics
reflex motion
roll angle
faint binary observation
S
SAME POS
scan length
Transfer Mode 1, 2
SCANS
scattered light
science
investigations suited to FGS
S-curve
beam decenter
calibration, TRANS
field dependence
ideal
properties
wavelength dependence, TRANS
search
target acquisition
SEQ NON-INT
slewing
described 1, 2
South Atlantic Anomaly
special requirement
exposure-level
orient
POS TARG
SAME POS
SEQ NON-INT
timing
visit-level
special requirements
Phase II
spectral coverage
spectral element
parameter, Phase II
star selector
described
stellar mass
step-size
STEP-SIZE
T
target acquisition
CoarseTrack
FineLock
Transfer Mode
target selection
Transfer Mode
timing requirement
Transfer mode
described
Transfer Mode
astrometry
bibliography 1, 2
calibration
color
combined with Position
exposure
exposure time
overheads
pipeline
S-curve
target acquisition
V
velocity
differential, aberration
virtual plate
W
WalkDown
target acquisition, FineLock
World Wide Web
FGS page 1, 2

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