... Abstract Get pointing (attitude) for a specified spacecraft clock time. ... Brief_I/O Variable I/O Description -------- --- -------------------------------------------------- inst I NAIF ID of instrument, spacecraft, or structure. sclkdp I Encoded spacecraft clock time. tol I Time tolerance. ref I Reference frame. cmat O C-matrix pointing data. clkout O Output encoded spacecraft clock time. found O True when requested pointing is available. ... Your request [--+--] . ... ckgp_c returns this instance...