prompt> gtpphase
This is gtpphase version v8r3
Event data file name[] fakepulsar_event.fits
Spacecraft data file name[] simscdata_1week.fits
Pulsar ephemerides database file name[] bogus_pulsardb.fits
Pulsar name[ANY] PSR J9999+9999
How will spin ephemeris be specified? (DB|FREQ|PER) [DB] DB
prompt>