Calibration Access and Data Handbook

next up previous contents
Next: Routines of the Calibration Up: Coordinate Definitions used by Previous: Spatial coordinate systems   Contents


Time coordinate system (TIMCOORD)

Several calibration entities are time dependent, i.e., change on a time-scale given by the typical duration of an observation ($\sim$ksecs). Each corresponding CAL subroutine receives a time argument which specifies a point in time represented as ellapsed number of seconds since the fixed mission reference time
1998-01-01T00:00:00.00 TT = 1997-12-31T23:58.56.816 UTC


Michael Smith 2011-09-20