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Дата изменения: Unknown
Дата индексирования: Tue Apr 12 03:01:43 2016
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STIS Reference Files
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Calibration Database System

Reference files used by the STIS calibration pipeline (CALSTIS) are updated on a regular basis. Current reference files can be retrieved from the HST archive, or downloaded directly from the oref directory. Note that FTP access is browser dependent: Safari does not work; Firefox or Chrome may or may not work depending on the Operating System. If you cannot download the files via Firefox or Chrome, you can try using a standalone FTP tool or accessing the ftp site directly (ftp ftp.stsci.edu) with 'anonymous' (without quotes) as your username and your email address as your password.

If you would like to receive an e-mail every time a new STIS reference file is delivered and the database is updated, you can subscribe to the stis_reffiles_upd mailing list. To subscribe to this list, send an e-mail to MajorDomo @ stsci.edu with the following in the body of the message:
subscribe stis_reffiles_upd your_address .

New tools for exploring STIS Reference Files are now available at https:/hst-crds.stsci.edu. To get a listing of the reference files you're interested in, click on 'stis' then select the filetype. Use the names below in the Header Keyword column as a guide.

Image Reference Files

Reference File Type Extension Header Keyword Detector
Bias Image File
Image of the additive stationary pattern in the electronic zero point of the UVIS CCDs. More...
bia BIASFILE CCD
Dark Image File
Image of the signal detected in the absence of photons from the sky. More...
drk DARKFILE Both
Pixel-to-pixel Flat Image File
Relative variations in pixel-to-pixel sensitivity of the detector. More...
pfl PFLTFILE Both
Delta Flat Image File
Changes to the small scale flat field contained in the PFLTFILE. More...
dfl DFLTFILE N/A
Low-order Flat Image File
A map of the large scale variations in the sensitivity across the detector. More...
lfl LFLTFILE Both
Shutter Shading Correction Image File
Correction for shading caused by the CCD shutter during very short exposures. More...
ssc SHADFILE N/A
Small Scale Distortion Image File
Correction deltas for small scale detector distortions. More...
ssd SDSTFILE N/A

Table Reference Files

Reference File Type Extension Header Keyword Detector
Analog-to-Digital Correction Table
Corrections to assigned DN Values. More...
a2d ATODTAB N/A
Aperture Description Table
Geometric description of the apertures and their offsets (in arcseconds) from a reference aperture. More...
apd APDSTAB Both
Aperture Throughput Table
Wavelength-dependent transmissions for each aperture with respect to a reference aperture. More...
apt APERTAB Both
Bad Pixel Table
Table of all known permanently bad pixels. More...
bpx BPIXTAB Both
CCD Parameters Table
CCD operating parameters, indexed on the readout amplifier. More...
ccd CCDTAB CCD
Cosmic Ray Rejection Parameters Table
Parameters used in cosmic ray rejection algorithm. More...
crr CRREJTAB CCD
Dispersion Coefficients Table
Coefficients to the nominal dispersion solution to be applied to extracted 1-D spectra. More...
dsp DISPTAB Both
Grating-Aperture Correction Table
Correction vectors for the 52X* and 52X*E1 apertures when used with the G230LB, G430L, and G750L gratings. More...
gac GACTAB CCD
Incidence Angle Correction Table
Coefficients to fits of the change in two dispersion coefficients as a function of angular offset from the reference position. More...
iac INANGTAB Both
Image Distortion Correction Table
A set of world coordinate information and fits to a distortion function. More...
idc IDCTAB Both
Image Photometry Keyword Table
Provides pre-computed photometric keywords. More...
imp IMPHTTAB Both
MAMA Linearity Table
Global and local count rate limits in the nonlinearity correction. More...
lin MLINTAB MAMA
Calibration Lamp Table
Spectra of the calibration lamps obtained at each of the operating currents. More...
lmp LAMPTAB Both
MAMA Offset Correction Table
Coefficients to fits of the change in the dispersion coefficients as a function of commanded offset from the reference position. More...
moc MOFFTAB MAMA
Photometric Correction Table
Correction factors for PHT. More...
pct PCTAB Both
Photometric Conversion Table
Throughput of the instrument configuration as a function of wavelength, assuming an infinite aperture. More...
pht PHOTTAB Both
2-D Spectrum Distortion Correction
Set of world coordinate information used to construct rectified, linearized 2-D spectra. More...
sdc SDCTAB Both
Cross-Disperser Scattering Table
Area-normalized scattering profiles. More...
cds CDSTAB MAMA
Echelle Scattering Table
Area-normalized scattering profiles for STIS echelle gratings, as a function of offset measured in low-resolution MAMA pixels. More...
ech ECHSCTAB MAMA
Echelle Cross-Dispersion Scattering Table
Area-normalized profiles describing smearing of echelle scattered light in the cross-dispersion direction. More...
exs EXSTAB MAMA
Detector Halo Table
Volume-normalized detector halo images at one or more reference wavelengths for each echelle grating. More...
hal HALOTAB MAMA
Echelle Ripple Table
Peak-normalized ripple (or blaze) functions for echelle gratings. More...
rip RIPTAB MAMA
Scattering Reference Wavelength Table
Halo reference wavelengths and PSF reference wavelengths used for correcting the two-dimensional effects of scattered light. More...
srw SRWTAB MAMA
Telescope Point Spread Function Table
Volume-normalized telescope PSF images at several reference wavelengths. More...
tel TELTAB MAMA
NUV Dark Correction Table
Time- and temperature-dependent characterization of the global rate of dark counts. More...
tdc TDCTAB NUV-MAMA
Time Dependent Sensitivity Files
Measures the change in the sensitivity of the detectors with time. More...
tds TDSTAB Both
Wavecal Parmeters Table
Parameters which control the wavecal processing. More...
wcp WCPTAB Both
1-D Spectrum Trace Table
Displacements of spectra along Axis2 for determining the location of a spectrum prior to extracting the 1-D spectrum. More...
1dt SPTRCTAB Both
1-D Extraction Parameters Table
The apertures (or "boxes") and methods used in the extraction of 1-D spectra. More...
1dx XTRACTAB Both