prompt> gtpphase
This is gtpphase version v8r3
Event data file name[] my_pulsar_events_v3.fits
Spacecraft data file name[] my_pulsar_spacecraft_data_v3r1.fits
Pulsar ephemerides database file name[] master_pulsardb_v3.fits
Pulsar name[ANY] PSR B0540-69
How will spin ephemeris be specified? (DB|FREQ|PER) [DB] DB
prompt>