Index A ACCUM dark current calibration function of minimum time mode, described 1, 2 multiple reads accumulate mode see "ACCUM" ACQ 1, 2, 3, 4 function of mode, described active control law afterimages amplifier glow 1, 2 described non-linearity aperture defining NIC1 through NIC3-FIX NIC2-ACQ 1, 2 NIC2-CORON 1, 2 array comparison to CCD read 1, 2 reset artifacts amplifier glow 1, 2, 3, 4 shading associations atomic lines attached parallel B background 1, 2 ground-based infrared radiation in exposure calculations spectroscopy thermal 1, 2, 3, 4, 5 zodiacal 1, 2 zodiacal light bad pixels 1, 2, 3 detector bandpass see "filter" Becklin-Neugebauer object bleeding breathing 1, 2 bright object limitations bright object mode see "BRIGHTOBJ" bright targets BRIGHTOBJ calibration of mode exposure times function of mode, described C camera attached parallel changing, overhead field of view filters focus image quality orientation 1, 2 resolution spatial resolution NIC1 NIC2 NIC3 spectroscopy, camera 3 camera 1 through camera 3 see "camera" and "filter" CCD compared to NICMOS array CELESTIAL 1, 2 chop 1, 2 overhead patterns ONE-CHOP TWO-CHOP CO lines cold baffling cold pixels combined patterns SPIRAL-DITH-CHOP XSTRIP-DITH-CHOP YSTRIP-DITH-CHOP continuous viewing zone conversion tool cooling system 1, 2, 3 capillary pumped loop 1, 2 circulator loop 1, 2, 3 circulator pump compressor pump cooling coil cryocooler 1, 2 electronic support module 1, 2 flex lines heat exchanger 1, 2, 3 multi-layer insulation NCS 1, 2, 3, 4, 5, 6 power conversion electronics coordinate system NICMOS 1, 2 coronagraphy aperture cold mask coronagraphic hole 1, 2 coronagraphic mask image contrast, PSF centering observations 1, 2 occulting spot target acquisition overhead cosmic rays 1, 2, 3 effect CPL (Capillary Pumped Loop) see "cooling system" cryocooler see "cooling system" CVZ see "continuous viewing zone" D dark current calibration in ACCUM or MULTIACCUM detector 1, 2 exposure times data data negative limit readout, overhead DEFOCUS mode 1, 2 detector amplifier glow 1, 2, 3, 4 array reset arrays artifacts bad pixels bias bright object limitations characteristics dark current 1, 2, 3, 4, 5 described DQE dynamic range 1, 2, 3 gain HgCdTe 1, 2 linearity 1, 2 non-destructive read non-linearity operations photovoltaic quantum efficiency read noise 1, 2, 3 readout modes 1, 2 response 1, 2 saturation 1, 2 shading see "shading" 1, 2 throughput well depth dewar 1, 2, 3, 4 aft end cold mask shifts cryogenic liquid inner shell solid nitrogen thermal short 1, 2 diffraction rings spikes diffraction limited 1, 2 dispersion direction dither 1, 2, 3, 4 patterns SPIRAL-DITH SQUARE-WAVE-DITH XSTRIP-DITH YSTRIP-DITH dynamic range detector E earthshine electronic bars emission lines exposure times emissivity encircled energy 1, 2 epsilon diagrams ESM (Electronic Support Module) see "cooling system" exclusion F164N, camera 3 F175W, camera 3 F187N, camera 3 F190N, camera 3 F196N, camera 3 F200N, camera 3 F212N, camera 3 F215N, camera 3 F222M, camera 3 F240M, camera 3 grisms polarizers exposure time calculator extended objects point sources signal-to-noise exposure times background radiation BRIGHTOBJ calculating dark current emission line contribution instrument parameters instrumental factors signal-to-noise, calculating F F090M through F237M see "filter" FET see "field effect transistor" FGS (Fine Guidance Sensors) field effect transistor field of view cameras field offset mirror optical path parallel observation PSF filter available, list of bandpasses 1, 2, 3 camera 1 camera 2 camera 3 described 1, 2 F090M, camera 1 F095N, camera 1 F097N, camera 1 F108N, camera 1 F108N, camera 3 F110M, camera 1 F110W, camera 1 F110W, camera 3 F113N, camera 1 F113N, camera 3 F11W, camera 2 F140W, camera 1 F145M, camera 1 F150W, camera 3 F160W, camera 1 F160W, camera 2 F160W, camera 3 F164N, camera 1 F164N, camera 3 F165M, camera 1 F165M, camera 2 F166N, camera 1 F170M, camera 1 F171M, camera 2 F175W, camera3 F180M, camera 2 F187N, camera 1 F187N, camera 2 F187N, camera 3 F187W, camera 2 F190N, camera 1 F190N, camera 2 F190N, camera 3 F196N, camera 3 F200N, camera 3 F204M, camera 2 F205W, camera 2 F207M, camera 2 F212N, camera 2 F212N, camera 3 F215N, camera 2 F215N, camera 3 F216N, camera 2 F222M, camera 2 F222M, camera 3 F237M, camera 2 F240M, camera 3 filter wheel G141 leak nomenclature polarimetry sensitivities sensitivity curves, polarizers sensitivity parameters 1, 2 spectroscopy 1, 2 transmission flat field color dependent response 1, 2 sensitivity variations flux Jansky 1, 2 magnitude systems standard stars unit conversion examples units 1, 2 focus camera 1 camera 2 history NIC3 out-of-focus operations pupil alignment mechanism FOM see "field offset mirror" FOS (Faint Object Spectrograph) G gain see "detector" ghosts glint 1, 2 glow amplifier, see "amplifier glow" grisms 1, 2 available background radiation described resolving power spectroscopy 1, 2 grot guide star acquisition overhead 1, 2 reacquisition overhead H helium lines Help Desk contacting history HOST (HST Orbital Systems Test) hot pixels hydrogen lines I IDT "Instrument Development Team" image quality strehl ratios imaging filters infrared polarimetry sensitivity limits instrument camera orientation coordinate system design field divider field of view field offset mirror filters optical train 1, 2 optics overview pixel size pupil alignment mechanism setup time, overhead intrapixel sensitivity J Jansky see also "flux" jitter L leaks filters linearity detector lines atomic molecular LOW-SKY M magnitude CIT system flux conversion infrared system UKIRT system zero points map patterns SPIRAL-MAP mapping MLI (Multi-Layer Insulation) see "cooling system" modes ACCUM 1, 2 ACQ 1, 2 BRIGHTOBJ detector readout INT-ACQ 1, 2 mode-2 acquisition 1, 2 MULTIACCUM 1, 2, 3 molecular lines mosaic MULTIACCUM 1, 2, 3, 4, 5 dark current calibration dynamic range function of mode, described 1, 2, 3 SAMP-TIME multiple accumulate mode see "MULTIACCUM" multiple initial and final reads 1, 2 N NCC (NICMOS Cryo Cooler) see "cooling system" NCS (NICMOS Cooling System) see "cooling system" 1, 2 NEXP NIC1 1, 2, 3, 4 encircled energy optimal focus NIC1 through NIC3-FIX see "aperture" NIC2 1, 2, 3, 4 encircled energy NIC3 1, 2, 3, 4 best focus vignetting NICMOS cooling system see "cooling system" NICMOS cryocooler see "cooling system" NICMOS-ORIENT NIC-SPIRAL-DITH non-destructive readout 1, 2, 3 NREAD NSAMP 1, 2 Nyquist sampling O observation attached parallel coronagraphic, planning grism, planning planning polarimetry, planning observing patterns predesigned NIC-MAP NIC-ONE-CHOP NIC-ONE-SKY-CHOP NIC-SPIRAL-DITH NIC-SPIRAL-DITH-CHOP NIC-SPIRAL-DITH-SKY-CHOP NIC-SPIRAL-MAP NIC-SQUARE-WAVE-DITH NIC-TWO-CHOP NIC-TWO-SKY-CHOP NIC-XSTRIP-DITH NIC-XSTRIP-DITH-CHOP NIC-XSTRIP-DITH-SKY-CHOP NIC-YSTRIP-DITH NIC-YSTRIP-DITH-CHOP OFFSET on-board acquisition operating mode overheads optical baffles optical elements grisms optical telescope assembly breathing optics astigmatism coma dewar elements emissivity filters grisms orbits required, calculating time requests ORIENT orientation described OTA see "optical telescope assembly" overhead coronagraphy example, polarimetry examples instrument specific NICMOS specific observatory level 1, 2 P paint flakes see "grot" PAM see "pupil alignment mechanism" 1, 2, 3 parallels attached pattern parameter form 1, 2 PCE (Power Conversion Electronics) see "cooling system" pedestal persistence cosmic ray 1, 2, 3, 4, 5 photon 1, 2 photodiode photometric stability photometry Johnson’s system red source sources with extreme colors stability Vega young stellar objects plate scale 1, 2, 3 pointing HST polarimetry example filters spectral coverage polarizers POS-TARG 1, 2, 3, 4, 5, 6 post-SAA proposal instructions overheads, exposure Phase I Phase II Phase II Proposal Instructions submission process unsupported modes PSF 1, 2 centering field dependence field offset mirror NIC3 Nyquist sampling subtraction temporal dependence temporal variations pupil alignment mechanism 1, 2 focus optical path Q quality image R re-acquisitions read noise described detector readout ACCUM mode 1, 2 ACQ mode 1, 2 BRIGHTOBJ exposure times mode 1, 2 MULTIACCUM mode 1, 2, 3 non-destructive NSAMP SAMP-TIME readout modes detector resolution cameras re-use target acquisition described reuse target offset 1, 2, 3, 4 RT ANALYSIS RTO see "reuse target offset" S SAA see "South Atlantic Anomaly" SAM see "small angle maneuvers" SAMP-TIME saturation detector sensitivity F164N, camera 3 F171M, camera 2 F175W, camera 3 F187N, camera 3 F190N, camera 3 F196N, camera 3 F200N, camera 3 F212N, camera 3 F215N, camera 3 F222M, camera 3 F237M, camera 2 F240M, camera 3 grisms limits polarizers servicing mission SM3B 1, 2, 3 shading 1, 2, 3, 4 dark current removal described 1, 2 shutter detector reset shutter mechanism signal-to-noise calculating 1, 2 sky brightness zodiacal background small angle maneuvers 1, 2, 3, 4 software spectroscopy reduction South Atlantic Anomaly Space Telescope European Coordinating Facility (ST-ECF) spacecraft jitter spacecraft orientations spectroscopy central wavelength complex fields dispersion G141 grism, general grisms, described sensitivity spectral coverage STSDAS calibration T target acquisition ACQ mode, described aperture 1, 2 interactive onboard 1, 2 re-use target offset target acquisition mode TECs see "thermally electrically cooled shells" telescope motion motion, overhead small angle maneuvers thermal background 1, 2, 3, 4 thermal electrically cooled shells thermal emission 1, 2 thermal regime 1, 2 thermal short see "dewar" thermal stress throughput time-resolved images TinyTim TWO-CHOP U units in Handbook microns user support Help Desk V vapor cooled shield Vega vignetting cameras 1 and 2 cold NIC3 warm Visual Target Tuner (VTT) W wavefront error wavelength units World Wide Web NICMOS Web page Y young stellar objects (YSOs) 1, 2 Z zodiacal background 1, 2, 3 ινστρυμεντ ? ρατιο