prompt> gtephem strict=yes
This is gtephem version ScienceTools-v9r17p0-fssc-20100630
Pulsar ephemerides database file name[] bogus_pulsardb.fits
Pulsar name[ANY] PSR J9999+9999
Reference time at which to find/compute ephemeris[0.] 54900.0
Time format for the reference time of this ephemeris computation (MJD|ISO|FERMI|GLAST) [MJD] MJD
Time system for the reference time of this ephemeris computation (TAI|TDB|TT|UTC) [TDB] TDB
gtephem: Spin ephemeris estimated is:
gtephem:              Reference Time : 54900 MJD (TDB)
gtephem:              Ephemeris Data : Not Available
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