ROMAN Calibration Reference Data System (CRDS)

 

NOTICE

The term "operational" has changed to "latest" when referring to the newest CRDS Context available. For more information, please refer to the user guide.

Documentation updates are ongoing. If something in the user guide is ambiguous, please reach out to the CRDS team or file a help desk ticket.


 

Obtain Best Reference Files

  1. Using the Command Line
  2. From Dataset ID or FITS Header Upload
  3. Exploring with Instrument Parameters

Reference File Database Services

  1. Server Environment Package Versions
  2. Browse Database
  3. Recent Activity

Latest References (under context roman_0065.pmap)

wfi

roman_wfi_0063.imap      Toggle N/A


absflux ---- Absolute Flux Spectroscopy

abvegaoffset ---- AB-Vega Magnitude Offset

apcorr ---- Aperture Correction

area ---- Area

bam ---- Boresight Alignment Matrix

dark ---- Dark

darkdecaysignal ---- Dark Decay Signal

detectorstatus ---- Detector Status

distortion ---- Distortion

dustmap ---- Galactic Dust Map

epsf ---- Empirical Point Spread Function

etc ---- Exposure Time Calculator

flat ---- Flat Field

gain ---- Gain image

integralnonlinearity ---- Integral Non-Linearity

inverselinearity ---- Inverse Linearity

ipc ---- Interpixel Capacitance

linearity ---- Linearity coefficients

mask ---- Bad Pixel Mask

matable ---- Multiple Accumulation Table

optmodel ---- Optical Model

pars-assignwcsstep ---- AssignWcsStep runtime parameters

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pars-darkcurrentstep ---- DarkCurrentStep runtime parameters

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pars-darkdecaystep ---- DarkDecayStep runtime parameters

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pars-dqinitstep ---- DQInitStep runtime parameters

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pars-exposurepipeline ---- Step parameters for ExposurePipeline

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pars-flatfieldstep ---- FlatFieldStep runtime parameters

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pars-fluxstep ---- FluxStep runtime parameters

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pars-highlevelpipeline ---- Step parameters for HighLevelPipeline

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pars-jumpstep ---- JumpStep runtime parameters

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pars-linearitystep ---- LinearityStep runtime parameters

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pars-multibandcatalogstep ---- MultibandCatalogStep runtime parameters

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pars-outlierdetectionstep ---- OutlierDetectionStep runtime parameters

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pars-photomstep ---- PhotomStep runtime parameters

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pars-rampfitstep ---- RampFitStep runtime parameters

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pars-refpixstep ---- RefPixStep runtime parameters

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pars-resamplestep ---- ResampleStep runtime parameters

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pars-saturationstep ---- SaturationStep runtime parameters

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pars-skymatchstep ---- SkyMatchStep runtime parameters

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pars-sourcecatalogstep ---- SourceCatalogStep runtime parameters

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pars-sourcedetectionstep ---- SourceDetectionStep runtime parameters

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pars-tweakregstep ---- TweakRegStep runtime parameters

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pars-wfi18transientstep ---- WFI18TransientStep runtime parameters

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photom ---- Photom

readnoise ---- Read Noise

refpix ---- Reference Pixels

relflux ---- Relative Flux

saturation ---- Saturation Threshhold

sflat ---- Small Scale Flat

skycells ---- Skycells covering entire celestial sphere

specpsf ---- Spectral Point Spread Function


Context History (more history, all contexts, build contexts)

Start Date Context Status Description
2026-09-16 roman_0065.pmap latest Delivering a new WFI BAM reference file that updates the alignment matrix to on-orbit values measured during commissioning.
2026-09-03 roman_0064.pmap archived Initial BAM reference file containing values for the Boresight Alignment Matrix. The values in this initial file are identical to the hardcoded pre-flight values in the pipeline and used by set_telescope_pointing, STP, in the L1 meta.pointing block.
2026-09-02 roman_0063.pmap archived Delivering new WFI dark and readnoise rmaps that add WFI_IM_DARK and WFI_SP_DARK to the list of exposure types for each reference file entry. This update gives more usability of running romancal on calibration program exposures like imaging and spectral darks.
2026-08-31 roman_0062.pmap archived Initial empty rmap for roman wfi BAM Boresight Alignment Matrix reference type.