Note: Absolute time format means a fully referenced time in any ANYTIM format, e.g. '3-mar-05 12:36:44'. If you supply an absolute time as a number, it is interpreted as seconds since 1-jan-1979 00:00 (and should be double precision).
Specifying the time range and time bins is done differently for each object class.
IMAGE OBJECT: No longer uses obs_time_interval (except for backward compatibility). Use im_time_interval and im_time_bin.
SPECTRUM OBJECT: Use obs_time_interval, time_range, and/or sp_time_interval.
obs_time_interval - start/end of overall time interval in absolute time format
time_range - normally [0.,0.] meaning use all of obs_time_interval. Or, can specify a start/end time in seconds relative to start of obs_time_interval to use. Or can specify an absolute interval, which will supercede obs_time_interval.
sp_time_interval - If scalar, then this is width of bins in seconds. If an array, then defines the edges of the time bins, and must be in absolute time.
LIGHTCURVE OBJECT: Use obs_time_interval, ltc_time_range, time_range, and/or ltc_time_resolution.
obs_time_interval - start/end of overall time interval in absolute time format
ltc_time_range - (interchangeable with time_range) Normally [0.,0.] meaning use all of obs_time_interval. Or, can specify a start/end time in seconds relative to start of obs_time_interval to use. Or can specify an absolute interval, which will supercede obs_time_interval
ltc_time_resolution - width of time bins in seconds.
OBSERVING SUMMARY OR QUICKLOOK: Use obs_time_interval to specify overall time.
Example:
o -> set, obs_time_interval= ['20-feb-02 11:06', '20-feb-02 11:08']
o -> set, time_range=[20,40]