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_0084.pmap)

wfi

roman_wfi_0082.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
2025-05-27 roman_0084.pmap latest The updated dark and read noise rmaps have added new p exptypes that will be in new files delivered. For imaging mode the allowed values are now wfi image, wfi lolo and wfi wfsc while for spectral mode we have allowed wfi spectral in addition to wfi grism and wfi prism. No underscores were used in this reason for delivery.
2025-04-22 roman_0083.pmap archived Initial delivery of ma table reference file to CRDS test.
2025-04-22 roman_0082.pmap archived Initial empty rmap for matable
2025-03-17 roman_0081.pmap archived This is the updated sky cell map with the proper transformations and useafter and other meta necessary to ingest the file.