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.


 

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Latest References (under context roman_0077.pmap)

wfi

roman_wfi_0075.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
2026-10-13 roman_0077.pmap latest WFI BAM, DISTORTION, and AREA files updated using the new SIAF generated on 2026-10-13 from observations taken in CAR-86.17. Affects all WFI observations taken after 2026-10-13T02 22 00.
2026-10-09 roman_0076.pmap archived These BAM, distortion, and area files were derived from the distortion terms in the Science Instrument Aperture File - SIAF - in PRDOPSRSOC-013 based on inflight observations during commissioning CAR-86.15 following an iteration of the CAR-50 Payload Focus and Alignment Campaign - PFAC.
2026-10-08 roman_0075.pmap archived The WFI distortion and pixel area map files have been updated using the Science Instrument Aperture File - SIAF - in PRDOPSRSOC-012 based on inflight observations during commissioning CAR-86.11 following the first Payload Focus and Alignment Campaign - PFAC 1. In additional to a change in the pixel scale, a shift of approximately 23 pixels was observed in the WFI-CEN aperture location.
2026-10-05 roman_0074.pmap archived New BAM file with updated quaternion values for the alignment matrix between the Roman observatory boresight and fine guidance system - FGS. This update includes on-orbit values from Roman commissioning and is valid for observations taken after the first Payload Focus and Alignment Campaign - PFAC.