meta/l2_cal_step-1.0.0

Level 2 Calibration Status

Outline

Schema Definitions

This type is an object with the following properties:

Original Schema 

%YAML 1.1
---
$schema: asdf://stsci.edu/datamodels/roman/schemas/rad_schema-1.0.0
id: asdf://stsci.edu/datamodels/roman/schemas/meta/l2_cal_step-1.0.0

title: Level 2 Calibration Status
type: object
properties:
  assign_wcs:
    title: Assign World Coordinate System (WCS) Step
    description: |
      Step in romancal that assigns a World Coordinate
      System (WCS) object to a science image.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_assign_wcs]
  flat_field:
    title: Flat Field Correction Step
    description: |
      Step in romancal in which a science image is
      flat-fielded, whereby each detector pixel is calibrated to give
      the same signal for the same illumination based on the pixel
      response.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_flat_field]
  dark:
    title: Dark Current Subtraction Step
    description: |
      Step in romancal that performs a correction for the
      dark current by subtracting the dark reference data from the
      science data.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_dark]
  dq_init:
    title: Data Quality Initialization Step
    description: |
      Step in romancal that initializes the data quality
      array and masks known bad pixels.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_dq_init]
  flux:
    title: Flux Scale Application Step
    description: |
      Step in ROMANCAL which applies the scaling factors determined in the Photom calibrations step.
      The data are converted from DN/s to MJy/sr.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_flux]
  linearity:
    title: Classical Linearity Correction Step
    description: |
      Step in romancal that linearizes the ramp data to
      correct for deviations from a linear response.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_linearity]
  photom:
    title: Populate Photometric Keywords Step
    description: |
      Step in romancal that populates photometric
      calibration information in the metadata of the science file.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_photom]
  source_catalog:
    title: Source Catalog Step
    description: |
      Step in romancal that detects point sources in an
      image for use in astrometric alignment.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_source_catalog]
  ramp_fit:
    title: Ramp Fitting Step
    description: |
      Step in romancal that fits a slope to each pixel to
      compute the count rate.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_ramp_fit]
  refpix:
    title: Reference Pixel Correction Step
    description: |
      Step in romancal that corrects science pixels for
      additional signal from the readout electronics (e.g., 1/f noise)
      using the reference pixels.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_refpix]
  saturation:
    title: Saturation Identification Step
    description: |
      Step in romancal that sets data quality flags for
      pixels at or above the saturation threshold.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_saturation]
  outlier_detection:
    title: Outlier Detection Step
    description: |
      Step in ROMANCAL which detects and flags outliers in a science image.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_outlier_detection]
  tweakreg:
    title: Tweakreg step
    description: |
      Step in romancal that compares the positions of point
      sources in the image with coordinates from an astrometric
      catalog and, if necessary, corrects the World Coordinate System
      (WCS) alignment.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_tweakreg]
  skymatch:
    title: Sky Matching for Combining Overlapping Images Step
    description: |
      Step in ROMANCAL that computes sky background values of each input image
      and derives scalings to equalize overlapping regions.
    allOf:
      - $ref: asdf://stsci.edu/datamodels/roman/schemas/enums/cal_step_flag-1.0.0
    archive_catalog:
      datatype: nvarchar(15)
      destination: [ScienceRefData.s_skymatch]
required:
  [
    assign_wcs,
    dark,
    dq_init,
    flat_field,
    flux,
    linearity,
    outlier_detection,
    photom,
    source_catalog,
    ramp_fit,
    refpix,
    saturation,
    skymatch,
    tweakreg,
  ]
additionalProperties: true