In the 2A25 TRMM data product, where within the HDF file is the time of the orbit information located?

[GES DISC - ingridgs]

Answer:
The date information is in the file name, or in the HDF file,

"OBJECT=RangeBeginningDate;\n",
"\tValue=2009/01/05;\n",
"\tData_Location=PGE;\n",
"\tMandatory=FALSE;\n",
"END_OBJECT=RangeBeginningDate;\n",

For each scan, you need to locate a variable in Vdata, scan_time, which is the time associated with the scan, expressed as an 8-byte floating variable for the UTC second of the day.

Either 'HDFView' or 'ncdump' can be employed to view that variable.