pyspi.utils.response.spi_pointing module

class pyspi.utils.response.spi_pointing.SPIPointing(sc_pointing_file)[source]

Bases: object

__init__(sc_pointing_file)[source]

This class handles the current SPI pointings based of the input SPI pointing file

Parameters

sc_pointing_file – An INTEGRAL/SPI spacecraft pointing file

Returns

property sc_matrix

get the sc_matrics of all the times in this pointing :returns: array of sc_matrices

property sc_points

ra, dec coordinates of the SPI x,y and z axis in the ICRS frame for all the times in this pointing

Returns

ra, dec coordinates of the SPI x,y and z axis in the ICRS frame for all the pointings

pyspi.utils.response.spi_pointing.construct_sc_matrix(scx_ra, scx_dec, scy_ra, scy_dec, scz_ra, scz_dec)[source]

Construct the sc_matrix, with which we can transform ICRS <-> Sat. Frame

Parameters

  • scx_ra – ra coordinate of satellite x-axis in ICRS

  • scx_dec – dec coordinate of satellite x-axis in ICRS

  • scy_ra – ra coordinate of satellite y-axis in ICRS

  • scy_dec – dec coordinate of satellite y-axis in ICRS

  • scz_ra – ra coordinate of satellite z-axis in ICRS

  • scz_dec – dec coordinate of satellite z-axis in ICRS

Returns

sc_matrix (3x3)

pyspi.utils.response.spi_pointing.construct_scy(scx_ra, scx_dec, scz_ra, scz_dec)[source]

Construct the vector of the y-axis of the Integral coord system in the ICRS frame

Parameters

  • scx_ra – ra coordinate of satellite x-axis in ICRS

  • scx_dec – dec coordinate of satellite x-axis in ICRS

  • scz_ra – ra coordinate of satellite z-axis in ICRS

  • scz_dec – dec coordinate of satellite z-axis in ICRS

Returns

vector of the y-axis of the Integral coord system

in the ICRS frame