prompt> gtephem strict=yes
This is gtephem version v8r2
Pulsar ephemerides database file name[] master_pulsardb_v3.fits
Pulsar name[ANY] PSR B0540-69
Reference time at which to find/compute ephemeris[0.] 54369.3
Time format for the reference time of this ephemeris computation (MJD|ISO|GLAST)  [MJD] MJD
Time system for the reference time of this ephemeris computation (TAI|TDB|TT|UTC)) [TDB] TDB
gtephem: No spin ephemeris was found in database:
StrictEphChooser::choose: Could not find a spin ephemeris for 25920 seconds after 54369.0 MJD (TDB)
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