TransformParameters

class jwst.lib.set_telescope_pointing.TransformParameters(allow_default: bool = False, default_pa_v3: float = 0.0, detector: str = None, dry_run: bool = False, engdb_url: str = None, exp_type: str = None, fgsid: int = None, fsmcorr_version: str = 'latest', fsmcorr_units: str = 'arcsec', guide_star_wcs: WCSRef = WCSRef(ra=None, dec=None, pa=None), j2fgs_transpose: bool = True, jwst_velocity: array = None, method: Methods = Methods.OPS_TR_202111, obsend: float = None, obsstart: float = None, override_transforms: Transforms = None, pcs_mode: str = None, pointing: Pointing = None, reduce_func: Callable = None, siaf: SIAF = None, siaf_db: SiafDb = None, tolerance: float = 60.0, useafter: str = None, v3pa_at_gs: float = None)

Bases: object

Parameters required the calculations

Attributes Summary

allow_default	If telemetry cannot be determined, use existing information in the observation's header.
default_pa_v3	The V3 position angle to use if the pointing information is not found.
detector	Detector in use.
dry_run	Do not write out the modified file.
engdb_url	URL of the engineering telemetry database REST interface.
exp_type	Exposure type
fgsid	FGS to use as the guiding FGS.
fsmcorr_units	Units of the FSM correction values.
fsmcorr_version	The version of the FSM correction calculation to use.
guide_star_wcs	Guide star WCS info, typically from the input model.
j2fgs_transpose	Transpose the j2fgs1 matrix.
jwst_velocity	The [DX, DY, DZ] barycentri velocity vector
method	The method, or algorithm, to use in calculating the transform.
obsend	Observation end time
obsstart	Observation start time
override_transforms	If set, matrices that should be used instead of the calculated one.
pcs_mode	The tracking mode in use.
pointing	The observatory orientation, represented by the ECI quaternion, and other engineering mnemonics
reduce_func	Reduction function to use on values.
siaf	The SIAF information for the input model
siaf_db	The SIAF database
tolerance	If no telemetry can be found during the observation, the time, in seconds, beyond the observation time to search for telemetry.
useafter	The date of observation (jwst.datamodel.DataModel.meta.date)
v3pa_at_gs	V3 position angle at Guide Star (jwst.datamodel.DataModel.meta.guide_star.gs_v3_pa_science)

Methods Summary

as_reprdict()	Return a dict where all values are REPR of their values
update_pointing()	Update pointing information

Attributes Documentation

allow_default: bool = False

If telemetry cannot be determined, use existing information in the observation’s header.

default_pa_v3: float = 0.0

The V3 position angle to use if the pointing information is not found.

detector: str = None

Detector in use.

dry_run: bool = False

Do not write out the modified file.

engdb_url: str = None

URL of the engineering telemetry database REST interface.

exp_type: str = None

Exposure type

fgsid: int = None

FGS to use as the guiding FGS. If None, will be set to what telemetry provides.

fsmcorr_units: str = 'arcsec'

Units of the FSM correction values. Default is ‘arcsec’. See calc_sifov_fsm_delta_matrix

fsmcorr_version: str = 'latest'

The version of the FSM correction calculation to use. See calc_sifov_fsm_delta_matrix

guide_star_wcs: WCSRef = WCSRef(ra=None, dec=None, pa=None)

Guide star WCS info, typically from the input model.

j2fgs_transpose: bool = True

Transpose the j2fgs1 matrix.

jwst_velocity: array = None

The [DX, DY, DZ] barycentri velocity vector

method: Methods = 'ops_tr_202111'

The method, or algorithm, to use in calculating the transform. If not specified, the default method is used.

obsend: float = None

Observation end time

obsstart: float = None

Observation start time

override_transforms: Transforms = None

If set, matrices that should be used instead of the calculated one.

pcs_mode: str = None

The tracking mode in use.

pointing: Pointing = None

The observatory orientation, represented by the ECI quaternion, and other engineering mnemonics

reduce_func: Callable = None

Reduction function to use on values.

siaf: SIAF = None

The SIAF information for the input model

siaf_db: SiafDb = None

The SIAF database

tolerance: float = 60.0

If no telemetry can be found during the observation, the time, in seconds, beyond the observation time to search for telemetry.

useafter: str = None

The date of observation (jwst.datamodel.DataModel.meta.date)

v3pa_at_gs: float = None

V3 position angle at Guide Star (jwst.datamodel.DataModel.meta.guide_star.gs_v3_pa_science)

Methods Documentation

as_reprdict()

Return a dict where all values are REPR of their values

update_pointing()

Update pointing information