ROMAN Calibration Reference Data System (CRDS)

 

Context History

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Start Date Context Status Description
2026-01-09 roman_0044.pmap latest Delivering a new WFI dark rmap that removes MA_TABLE_NUMBER as a selection criteria because this keyword is not needed for selection of the dark reference files.
2025-12-09 roman_0043.pmap archived The new ePSF files are updated to include jitter metadata for testing SOC Build 20.
2025-11-18 roman_0042.pmap archived The Roman WFI readnoise rmap was missing the WFI_LOLO exposure type, which was preventing DMS from being able to process Roman MRT data taken in the LOLO mode. This new WFI readnoise rmap is being delivered with WFI_LOLO added to the exposure type list for all entries.
2025-10-23 roman_0041.pmap archived Updated linearity and inverse linearity reference files have been recentered to accommodate stcal implementation of the linearity correction. Additionally, new dg arrays include the NO LIN COR for pixels that did not round trip but file conversions less than 200 DN. This is the follow up delivery for updating these files.
2025-10-22 roman_0040.pmap archived The updated linearity and inverse linearity reference files had an incorrect useafter date attribute in their meta data. Removing these files and will resubmit files with the correct useafter date.
2025-10-21 roman_0039.pmap archived Updated linearity and inverse linearity reference files have been recentered to accommodate stcal implementation of the linearity correction. Additionally, new dg arrays include the NO LIN COR for pixels that did not round trip but file conversions less than 200 DN
2025-10-09 roman_0038.pmap archived Delivering new wfi flat, readnoise, and epsf rmaps to facilitate tvac decommissioning. The new epsf rmap has been modified to allow for L3 processing to choose for each filter the epsf reference file for detector WFI02. In testing an additional NA value pointing to the same reference file for filter was used by default in romancal when looking for a reference file, see CRDS-1031 for more details. The new readnoise rmap adds WFI_SPECTRAL and WFI_WFSC for each entry, see CCD-1663 for more details. The new flat rmap adds N/A entries for each optical element, see CCD-1664 for more details.
2025-10-08 roman_0037.pmap archived This delivery comprises aperture correction reference files that are being copied from CRDS Test and Ops to CRDS TVAC for migration and decommissioning of the TVAC CRDS server and having that last version be the new base for Test and Ops.
2025-09-22 roman_0036.pmap archived This delivery copies the skycell reference file from Ops CRDS to TVAC CRDS in order to support the decommissioning of TVAC CRDS and for RTB transitioning into an operations like paradigm.
2025-09-22 roman_0035.pmap archived This delivery is to copy the AB Vega Offset reference files from Test and Ops onto the CRDS TVAC in helping to coordinate the sunsetting of CRDS TVAC and the preparation for operations with CRDS deliveries moving forward towards commissioning and launch.
2025-09-18 roman_0034.pmap archived Delivering initial rmaps to TVAC for all parameter reference file types currently in OPS and TEST to assist with TVAC decomissioning. See CRDS-1032 for more information.
2025-09-18 roman_0033.pmap archived 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_0032.pmap archived Delivering initializing mappings of abvegaoffset, apcorr, and skycells reference file types to TVAC to prepare for migration of files from Test/Ops to TVAC. See CRDS-1026 for more information.
2025-09-15 roman_0031.pmap archived 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.
2025-09-12 roman_0030.pmap archived Delivering epsf reference files from Test and Ops to TVAC for migration coordination.
2025-09-10 roman_0029.pmap archived This is to deliver the MA Table reference file which has the complete set of old historical MA Tables for development builds, new MA Tables for TVAC testing, and Revision G MA Tables.
2025-05-29 roman_0028.pmap archived This is the first instance of the MTABLE reference file. It is derived from the pre-RevG MA Table.
2025-05-28 roman_0027.pmap archived The initial rmap for the matable reference type was delivered. Photom files were updated to account for the gain factor such that zeropoints transform from DN per sec to MJy per sr. First delivery of pixel area maps to support photometry on L2 images.
2025-04-04 roman_0025.pmap archived These updated photom files have had units removed from the photom table dictionary to comply with Build 17 versions of roman data models.
2025-04-02 roman_0024.pmap archived This delivery encompasses updates to the the dark, gain, read noise and saturation reference files where the units were removed from the data model and are necessary for updates to the Roman Nexus software version of romancal for processing in example notebooks.
2025-02-21 roman_0023.pmap archived These dark files have all zeros and correspond to the MA Table number ID used during activities during TVAC that have 55 resultants with each read being its own resultant. These files allow for romancal processing to apply the dark reference file from the dark step to TVAC data with this placeholder file of zeros for now but will eventually be updated as analysis continues in understanding the dark signal.
2025-01-06 roman_0021.pmap archived These are the first pass of read noise reference files made from TVAC total noise test. The correlated noise was removed prior to processing with the IRRC. The read noise values correspond to the standard deviation of residuals for every pixel from the best fit slope are in DN and have not yet been converted to electrons as will be accounted for properly in the next version and with more detailed analyses.
2025-01-06 roman_0020.pmap archived These are the first pass of flat reference files derived from TVAC data that are to be used to support Roman science platform testing and tutorials at AAS. All of the optical elements are covered through these files. Bands 1-3 from TVAC correspond specifically to flats for the filters: F062, F087, F106 while the band 5 data corresponds to F158, it will also be used for F129, F184, F213, and F146.
2025-01-06 roman_0019.pmap archived Deleting all existing WFI flat reference files that were derived from TVAC data that had bands that were not properly mapped to the correct optical elements for the Roman filters. New flat files will be delivered to replace these.
2025-01-04 roman_0018.pmap archived Roman WFI absolute photometric calibration information was used to generate new photom files with throughput information coming from the Roman Technical Information Repository. These files are needed for the upcoming Roman science platform tutorial and development and testing before AAS.
2024-12-28 roman_0017.pmap archived The inverse linearity reference files were derived as a first pass attempt of using TVAC2 data to make more realistic products for use with Roman Science Platform testing and tutorials at the upcoming AAS conference.
2024-12-24 roman_0016.pmap archived These files are copied from Roman Test CRDS and have had their meta data updated to reflect their origin. They are needed to support Roman Science Platform testing and tutorials at the upcoming AAS.
2024-12-23 roman_0015.pmap archived These files are copies of the distortion files from test roman crds but have had the author and description updated to state as much.
2024-12-19 roman_0014.pmap archived These dark files represent all of the matching science Multi Accumulation Table information that currently exists in PRD. Specifically, MA Tables 3 through 17 and excluding defocus and diagnostic MA Tables 1,2 and 18. These files are intended for use in creating and processing data from L0 to L2. The values of the data are all zero and the files were compressed with internal asdf functionality.
2024-12-19 roman_0013.pmap archived These are the first pass of flat files for optical elements F087 and F129 from TVAC 2 data utilizing bands 1 and 3. These are intended as first attempts to have realistic CRDS data for Roman Science Platform testing and tutorials on the TVAC server.
2024-10-02 roman_0012.pmap archived These are first pass gain reference files derived from TVAC1 data. They use an algorithm developed by Tim Brandt and every pixel is ensured to have a determined value or a filler value of 1.8.
2024-10-01 roman_0011.pmap archived These are the first versions of linearity and saturation reference files derived from TVAC 1 data and are intended to be sufficiently accurate enough as place holders until more refined measurements of future updated files.
2024-09-10 roman_0010.pmap archived New mask reference files incorporating optical bad pixel maps from GSFC are being updated and made available.
2024-08-27 roman_0009.pmap archived Uploading a reference pixel reference file that was not delivered with the initial batch of files.
2024-08-09 roman_0008.pmap archived Initial empty rmaps for area, distortion, flat, gain, inverselinearity, ipc, linearity, photom, readnoise, and saturation.
2024-08-02 roman_0007.pmap archived Roman TVAC was using an incorrect parkey in the mappings. We are delivering a new pmap with the corrected parkey, ROMAN.META.INSTRUMENT.NAME, to fix this.
2024-06-25 roman_0006.pmap archived Initial TVAC bad pixel map Mask reference files to be used during the DQInit step of romancal for processing TVAC data after converted to asdf format.
2024-06-11 roman_0005.pmap archived Initial empty rmap for mask reference files
2024-05-10 roman_0004.pmap archived These are reference pixel reference files made from TVAC1 data from the total noise test. This submission is the first to the TVAC server and these files are essential for removing 1 over f noise in Roman data.
2024-04-11 roman_0003.pmap archived Initial empty rmaps for wfi dark and refpix
2024-01-30 roman_0002.pmap archived Insert rule for WFI
2024-01-30 roman_0001.pmap archived Initial pmap for ROMAN TVAC server.

The Context History displays the dates at which particular CRDS reference assignment rules were first used in the pipeline.