LatissMonolithTaskConfig

class lsst.ts.wep.task.LatissMonolithTaskConfig(*args, **kw)

Bases: PipelineTaskConfig

Configuration for LatissMonolithTask.

Attributes Summary

connections	Field which refers to a dynamically added configuration class which is based on a PipelineTaskConnections class.
cutOutDonuts	a hand-rolled box cutout was tried and centres the donut measurably worse (inner_frac ~1.11, Z8 collapsing from +86 to +2 nm).
doSaveStamps	Whether to write the donut stamps as outputs.
donutDiameter	Donut diameter in pixels, passed to QuickFrameMeasurement and used as the stamp size.
estimateZernikes	Zernike estimation subtask, run on the peak-normalized stamps.
isrTask	ISR subtask run on each raw exposure.
maxChiSquare	If set, pairs whose danish reduced chi-square exceeds this are flagged used=False and excluded from the average.
maxDistanceFromBoresight	run_wep's default of 500 goes through calculate_xy_offsets, which converts to arcsec, so 500 is ~5225 px -- most of the detector, i.e. a sanity check rather than a tight cut.
opticalModel	there is no off-axis batoid fit for AuxTel, so the 'offAxis' default is wrong.
pairer	Task to pair up intra- and extra-focal exposures.
quickFrameMeasurement	a LATISS alignment exposure has one bright donut near the boresight, and this is what latiss_wep_align uses.
saveLogOutput	Flag to enable/disable saving of log output for a task, enabled by default.

Methods Summary

setDefaults()

Subclass hook for computing defaults.

Attributes Documentation

connections: pexConfig.ConfigField

Field which refers to a dynamically added configuration class which is based on a PipelineTaskConnections class.

cutOutDonuts: ConfigurableField

a hand-rolled box cutout was tried and centres the donut measurably worse (inner_frac ~1.11, Z8 collapsing from +86 to +2 nm). (ConfigurableInstance, default <class 'lsst.ts.wep.task.cutOutDonutsScienceSensorTask.CutOutDonutsScienceSensorTaskConfig'>)

Type:

Stamp cutout subtask. Deliberately the stock ts_wep task

doSaveStamps: Field

Whether to write the donut stamps as outputs. (bool, default True)

donutDiameter: Field

Donut diameter in pixels, passed to QuickFrameMeasurement and used as the stamp size. 228 is what latiss_wep_align derives for dz=0.8 (ceil(192*1.1*0.8/1.5/2)*2 * 2). Note the default stamp size of 160 is LSSTCam-sized and CLIPS an AuxTel donut, which is 194 px across. (int, default 228)

estimateZernikes: ConfigurableField

Zernike estimation subtask, run on the peak-normalized stamps. nollIndices and instConfigFile are taken from here. (ConfigurableInstance, default <class 'lsst.ts.wep.task.estimateZernikesDanishTask.EstimateZernikesDanishConfig'>)

isrTask: ConfigurableField

ISR subtask run on each raw exposure. (ConfigurableInstance, default <class 'lsst.ip.isr.isrTaskLSST.IsrTaskLSSTConfig'>)

maxChiSquare: Field

If set, pairs whose danish reduced chi-square exceeds this are flagged used=False and excluded from the average. Fit quality tracks Z4 error, so this is a usable cut, but a good threshold depends on stamp size and seeing – hence no default. (float, default None)

maxDistanceFromBoresight: Field

run_wep’s default of 500 goes through calculate_xy_offsets, which converts to arcsec, so 500 is ~5225 px – most of the detector, i.e. a sanity check rather than a tight cut. (float, default 500.0)

Type:

Maximum distance in ARCSECONDS from the boresight for a detected donut to be accepted. When one side is out of bounds the other side’s centroid is substituted, as latiss_wep_align does. The unit matters

opticalModel: Field

there is no off-axis batoid fit for AuxTel, so the ‘offAxis’ default is wrong. (str, default 'onAxis')

Type:

Optical model for the cutout masks. Must be ‘onAxis’ for AuxTel

pairer: ConfigurableField

Task to pair up intra- and extra-focal exposures. (ConfigurableInstance, default <class 'lsst.ts.wep.task.pairTask.ExposurePairerConfig'>)

quickFrameMeasurement: ConfigurableField

a LATISS alignment exposure has one bright donut near the boresight, and this is what latiss_wep_align uses. (ConfigurableInstance, default <class 'lsst.pipe.tasks.quickFrameMeasurement.QuickFrameMeasurementTaskConfig'>)

Type:

Finds the bright central donut. Used in place of donut detection

saveLogOutput

Flag to enable/disable saving of log output for a task, enabled by default. (bool, default True)

Methods Documentation

setDefaults()

Subclass hook for computing defaults.

Return type:

None

Notes

Derived Config classes that must compute defaults rather than using the Field instances’s defaults should do so here. To correctly use inherited defaults, implementations of setDefaults must call their base class’s setDefaults.