Space Telescope Science Institute
COS Instrument Handbook
help@stsci.edu
Table of Contents Previous Next Index


Index

A
ACCUM mode 1, 2
Doppler correction
pulse-height data
acquisitions 1, 2, 3
ACQ/IMAGE
ACQ/PEAKD
ACQ/PEAKXD
ACQ/SEARCH
spiral pattern
centering accuracy and photometry
early (preliminary images)
exposure time
dispersed-light
imaging
extended or multiple targets
offset target
overhead times
recommended parameters (table)
airglow - see background rates
airglow emission - see background rates
apertures 1, 2
BOA
FCA
PSA
table
WCA
ApM - see mechanisms, ApM
B
background rates 1, 2
airglow 1, 2
detector
Earthshine
geocoronal
Moon
second-order light
tables
zodiacal light 1, 2
BOA - see apertures, BOA
bright-object protection 1, 2
BUFFER-TIME estimation
C
calibration accuracies
calibration observations 1, 2
Cycle 17 1, 2
Cycle 18
Cycle 19
Cycle 20
FUV lifetime positions
ground testing
SMOV
Cardelli extinction model
COS
compared to STIS 1, 2
focal plane schematic
optical design 1, 2
team members
Cycle 17 calibration observations 1, 2
Cycle 18 calibration observations
Cycle 19 calibration observations
Cycle 20 calibration observations
D
dark rate 1, 2
data products 1, 2
dead time
FUV
NUV
detector non-linear effects - see dead time
detector plate scale
Doppler correction
ACCUM mode
TIME-TAG mode
E
Earthshine - see background rates
effective area
FUV point source
NUV imaging
NUV point source
ETC 1, 2
examples
observing sequences 1, 2
using the ETC 1, 2
exposure time
acquisitions
dispersed-light
imaging
estimating with ETC 1, 2
valid values
wavecal exposures
Exposure Time Calculator - see ETC
EXTENDED optional parameter
extinction
Cardelli model
F
FCA - see apertures, FCA
flat-field quality
flux precision
FP-POS optional parameter
Frequently-Asked Questions
FUV channel
detector 1, 2
bright-object protection procedures
characteristics (table)
count-rate limits
dark rate 1, 2
dead time
dead-time constant
format
gain sag
photocathode
pulse-height distribution
quantum efficiency
segment gap coverage
sensitivity adjustments
single-segment observations
stim pulses
walk effect
effective area
grating parameters
lifetime positions
calibration
optical design
spatial variation of dark rate
wavelength settings and ranges
G
G130M grating
CENWAVE=1055 or 1096
CENWAVE=1222
G140L grating
G160M grating
G185M grating
G225M grating
G230L grating
G285M grating
Gain sag
Galactic extinction - see extinction
grating parameters
ground testing
H
HST
apertures and focal plane 1, 2
wavefront errors
I
Instrument Development Team (IDT) members
L
line-spread function 1, 2
M
mechanisms
ApM
OSM1
OSM2 1, 2
shutter
MIRRORA
MIRRORB
N
Number_of_Iterations optional parameter
NUV channel
detector 1, 2
bright-object protection procedures
characteristics (table)
count-rate limits
dark rate 1, 2
dead time
dead-time constant
format
MAMA properties
photocathode
point-spread function
quantum efficiency
spectral gap coverage
effective area
grating parameters
imaging 1, 2
optical design
vignetting
wavelength settings and ranges
O
OSM1 - see mechanisms, OSM1
OSM2 - see mechanisms, OSM2
overhead times 1, 2
acquisitions
first-exposure adjustment
generic observatory times
OSM1 movements
OSM2 movements
Phase I estimates
science exposures
P
photometric precision
plate scale - see detector plate scale
point-spread function 1, 2
of NUV MAMA
PSA - see apertures, PSA
pulse-height distribution
R
resolution
imaging
spatial
spectroscopic 1, 2
(table)
temporal (TIME-TAG mode)
resolution element (resel)
resolving power
S
Scattered light, internal
second-order light
SEGMENT optional parameter
sensitivity
shutter - see mechanisms, shutter
signal-to-noise ratio
estimating
improving
plots
see also exposure time, estimating
SMOV calibration observations
SNAP programs
spectrograph design parameters 1, 2
spectroscopic modes - see grating parameters
stim pulses
STIS compared to COS 1, 2
STMAG system
STScI Help Desk
T
TAGFLASH
exposure durations
target acquisitions - see acquisitions
TIME-TAG mode 1, 2
BUFFER-TIME estimation
Doppler correction
pulse-height data
U
units and conventions
User Support
W
wavecal - see wavelength calibration
wavelength accuracy
specifications
wavelength calibration 1, 2
AUTO
TAGFLASH
user-specified
wavelength settings and ranges (table)
wavelengths, units and convention
WCA - see apertures, WCA
X
XDL - see FUV channel
Z
zodiacal light - see background rates

Table of Contents Previous Next Index