visit_grism_sky

grizli.prep.visit_grism_sky(grism={}, apply=True, column_average=True, verbose=True, ext=1, sky_iter=10, iter_atol=0.0001, use_spline=True, NXSPL=50, skip_nircam=True, ignoreNA=False)

Subtract sky background from grism exposures

Implementation of the multi-component grism sky subtraction from WFC3/ISR 2015-17

Parameters

grismdict

Grism exposure dictionary (product, files).

applybool

Apply the computed sky background subtraction to the grism exposures.

column_averagebool

Use column average to compute the sky background.

verbosebool

Print status messages.

extint

FITS extension to use for the sky subtraction.s

sky_iterint

Number of iterations for the sky subtraction.

iter_atolfloat

Absolute tolerance for the sky subtraction iterations.

use_splinebool

Use spline interpolation for the sky background.

NXSPLint

Number of spline knots for the sky background.

skip_nircambool

Skip NIRCam grism exposures.

ignoreNAbool

Ignore “N/A” reference files.

Returns

Nothing, sky background subtracted from the grism exposures in place.