ramp_fit_output-1.0.0
Ramp Fit Output Schema
Outline
Schema Definitions ¶
This type is an object with the following properties:
meta
common-1.0.0 Required slope
tag:stsci.edu:asdf/unit/quantity-1.* Required Slope of a specific segment for a ramp with uneven resultants, in units of electrons per second. A segment is a set of contiguous resultants where none of the resultants are saturated or cosmic ray-affected.
sigslope
tag:stsci.edu:asdf/unit/quantity-1.* Required Uncertainty on slope for specific segment for a ramp with uneven resultants in units of electrons per second. A segment is a set of contiguous resultants where none of the resultants are saturated or cosmic ray-affected.
yint
tag:stsci.edu:asdf/unit/quantity-1.* Required Y-intercept derived for a specific segment (electrons). A segment is a set of contiguous resultants where none of the resultants are saturated or cosmic ray-affected.
sigyint
tag:stsci.edu:asdf/unit/quantity-1.* Required Uncertainty on Y-intercept derived for a specific segment (electrons). A segment is a set of contiguous resultants where none of the resultants are saturated or cosmic ray-affected.
pedestal
tag:stsci.edu:asdf/unit/quantity-1.* Required Signal at zero exposure time for each pixel in electrons.
weights
tag:stsci.edu:asdf/core/ndarray-1.* Required crmag
tag:stsci.edu:asdf/unit/quantity-1.* Required The magnitude of each segment that was flagged as having a cosmic ray hit.
var_poisson
tag:stsci.edu:asdf/unit/quantity-1.* Required Poisson variance associated with a segment-specific slope, in units of electrons^2 / sec^2.
var_rnoise
tag:stsci.edu:asdf/unit/quantity-1.* Required Read noise-associated variance for a segment-specific slope, in units of electrons^2 / sec^2.
Original Schema ¶
%YAML 1.1
---
$schema: asdf://stsci.edu/datamodels/roman/schemas/rad_schema-1.0.0
id: asdf://stsci.edu/datamodels/roman/schemas/ramp_fit_output-1.0.0
title: Ramp Fit Output Schema
datamodel_name: RampFitOutputModel
type: object
properties:
meta:
$ref: common-1.0.0
slope:
title: Slope for Specific Segment (electrons / s)
description: |
Slope of a specific segment for a ramp with uneven resultants, in units of
electrons per second. A segment is a set of contiguous resultants where
none of the resultants are saturated or cosmic ray-affected.
tag: tag:stsci.edu:asdf/unit/quantity-1.*
properties:
value:
tag: tag:stsci.edu:asdf/core/ndarray-1.*
datatype: float32
exact_datatype: true
ndim: 3
unit:
tag: tag:astropy.org:astropy/units/unit-1.*
enum: ["electron / s"]
sigslope:
title: Uncertainty on Slope for Specific Segment (electrons / s)
description: |
Uncertainty on slope for specific segment for a ramp with uneven
resultants in units of electrons per second. A segment is a set of
contiguous resultants where none of the resultants are saturated or cosmic
ray-affected.
tag: tag:stsci.edu:asdf/unit/quantity-1.*
properties:
value:
tag: tag:stsci.edu:asdf/core/ndarray-1.*
datatype: float32
exact_datatype: true
ndim: 3
unit:
tag: tag:astropy.org:astropy/units/unit-1.*
enum: ["electron / s"]
yint:
title: Y-Intercept Derived for a Specific Segment (electrons)
description: |
Y-intercept derived for a specific segment (electrons). A segment is a set
of contiguous resultants where none of the resultants are saturated or
cosmic ray-affected.
tag: tag:stsci.edu:asdf/unit/quantity-1.*
properties:
value:
tag: tag:stsci.edu:asdf/core/ndarray-1.*
datatype: float32
exact_datatype: true
ndim: 3
unit:
tag: tag:astropy.org:astropy/units/unit-1.*
enum: ["electron"]
sigyint:
title: Uncertainty on Y-Intercept Derived for a Specific Segment (electrons)
description: |
Uncertainty on Y-intercept derived for a specific segment (electrons). A
segment is a set of contiguous resultants where none of the resultants are
saturated or cosmic ray-affected.
tag: tag:stsci.edu:asdf/unit/quantity-1.*
properties:
value:
tag: tag:stsci.edu:asdf/core/ndarray-1.*
datatype: float32
exact_datatype: true
ndim: 3
unit:
tag: tag:astropy.org:astropy/units/unit-1.*
enum: ["electron"]
pedestal:
title: Pedestal Array (electrons)
description: |
Signal at zero exposure time for each pixel in electrons.
tag: tag:stsci.edu:asdf/unit/quantity-1.*
properties:
value:
tag: tag:stsci.edu:asdf/core/ndarray-1.*
datatype: float32
exact_datatype: true
ndim: 2
unit:
tag: tag:astropy.org:astropy/units/unit-1.*
enum: ["electron"]
weights:
title: Weights for Segment Specific Fit
tag: tag:stsci.edu:asdf/core/ndarray-1.*
ndim: 3
datatype: float32
exact_datatype: true
crmag:
title: Approximate Cosmic Ray Magnitudes (AB magnitude)
description: |
The magnitude of each segment that was flagged as having a cosmic ray hit.
tag: tag:stsci.edu:asdf/unit/quantity-1.*
properties:
value:
tag: tag:stsci.edu:asdf/core/ndarray-1.*
datatype: float32
exact_datatype: true
ndim: 3
unit:
tag: tag:astropy.org:astropy/units/unit-1.*
enum: ["electron"]
var_poisson:
title: Poisson Variance Associated with a Segment Specific Slope (electrons^2 / sec^2)
description: |
Poisson variance associated with a segment-specific slope, in units of
electrons^2 / sec^2.
tag: tag:stsci.edu:asdf/unit/quantity-1.*
properties:
value:
tag: tag:stsci.edu:asdf/core/ndarray-1.*
datatype: float32
exact_datatype: true
ndim: 3
unit:
tag: tag:astropy.org:astropy/units/unit-1.*
enum: ["electron2 / s2"]
var_rnoise:
title: Read Noise Variance Associated for a Segment Specific Slope (electrons^2 / sec^2)
description: |
Read noise-associated variance for a segment-specific slope, in units of
electrons^2 / sec^2.
tag: tag:stsci.edu:asdf/unit/quantity-1.*
properties:
value:
tag: tag:stsci.edu:asdf/core/ndarray-1.*
datatype: float32
exact_datatype: true
ndim: 3
unit:
tag: tag:astropy.org:astropy/units/unit-1.*
enum: ["electron2 / s2"]
required: [meta, slope, sigslope, yint, sigyint, pedestal, weights, crmag, var_poisson,
var_rnoise]
propertyOrder: [meta, slope, sigslope, yint, sigyint, pedestal, weights, crmag, var_poisson,
var_rnoise]
flowStyle: block
...