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_0090.pmap)

wfi

roman_wfi_0088.imap      Toggle N/A


abvegaoffset ---- AB-Vega Magnitude Offset

apcorr ---- Aperture Correction

area ---- Area

dark ---- Dark

distortion ---- Distortion

epsf ---- Empirical Point Spread Function

flat ---- Flat Field

gain ---- Gain image

inverselinearity ---- Inverse Linearity

ipc ---- Interpixel Capacitance

linearity ---- Linearity coefficients

mask ---- Bad Pixel Mask

matable ---- Multiple Accumulation Table

pars-assignwcsstep ---- AssignWcsStep runtime parameters

pars-darkcurrentstep ---- DarkCurrentStep runtime parameters

pars-dqinitstep ---- DQInitStep runtime parameters

pars-exposurepipeline ---- Step parameters for ExposurePipeline

pars-flatfieldstep ---- FlatFieldStep runtime parameters

pars-fluxstep ---- FluxStep runtime parameters

pars-highlevelpipeline ---- Step parameters for HighLevelPipeline

pars-jumpstep ---- JumpStep runtime parameters

pars-linearitystep ---- LinearityStep runtime parameters

pars-outlierdetectionstep ---- OutlierDetectionStep runtime parameters

pars-photomstep ---- PhotomStep runtime parameters

pars-rampfitstep ---- RampFitStep runtime parameters

pars-refpixstep ---- RefPixStep runtime parameters

pars-resamplestep ---- ResampleStep runtime parameters

pars-saturationstep ---- SaturationStep runtime parameters

pars-skymatchstep ---- SkyMatchStep runtime parameters

pars-sourcedetectionstep ---- SourceDetectionStep runtime parameters

pars-tweakregstep ---- TweakRegStep runtime parameters

photom ---- Photom

readnoise ---- Read Noise

refpix ---- Reference Pixels

saturation ---- Saturation Threshhold

skycells ---- Skycells covering entire celestial sphere


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

Start Date Context Status Description
2025-09-18 roman_0090.pmap latest Delivering new dark rmap that replaces all WFI_GRISM-WFI_PRISM with WFI_SPECTRAL as a tweak to the previous dark rmap.
2025-09-16 roman_0089.pmap delivered Delivering new wfi dark rmap to remove differentiating by MA Table ID selection criteria. All MA Table ID selection criteria set to N/A. See CRDS-1015 for more info.
2025-07-25 roman_0088.pmap archived New MATABLE and skycells reference files. The MATABLE reference file has the current Revision G tables and coincides with PRD release 20 and the PSS patch to update the MA Tables. The table numbers were shifted to match the flight paradigm. The skycells file has the most updated transformations.
2025-07-02 roman_0086.pmap archived Updating the dark rmap to allow for MA Table 110 to be used for all detectors in spectral modes.