calc_sifov_fsm_delta_matrix

jwst.lib.set_telescope_pointing.calc_sifov_fsm_delta_matrix(fsmcorr, fsmcorr_version='latest', fsmcorr_units='arcsec')

Calculate Fine Steering Mirror correction matrix.

Parameters:

fsmcorrnp.array((2,))

The FSM correction parameters:

• 0: SA_ZADUCMDX

• 1: SA_ZADUCMDY

fsmcorr_versionstr

The version of the FSM correction calculation to use. Versions available: latest: The state-of-art. Currently v2:

• v2: Update 201708 to use actual spherical calculations

• v1: Original linear approximation.

fsmcorr_unitsstr

The units of the FSM correction values. Default is arcsec.

Returns:

transformnp.array((3, 3))

The transformation matrix.