The RD_ATR routine allows a user to read the raw S/C pointing information
which is stored in secondary database files. The
ATR files have the IRU, HXA, and TFSS information for every major
frame. The RD_ATT routine allows a user to read the processed S/C pointing
information. Sample calls would be:
IDL> rd_atr, sttim, entim, atr
IDL> rd_att, sttim, entim, att
IDL> rd_atr, '1-nov-91', '3-nov-91', atr
The ATR structure that is returned has the following tags:
The ATT database is derived from the HXA and IRU data using the routine IRUHXA2SXT which was written by Jean-Pierre Wuelser. The ATT structure that is returned has the following tags:
