prompt> gtephem 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.] 54368.11094817 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: Spin ephemeris estimated is: gtephem: Reference Time : 54368.11094817 MJD (TDB) gtephem: Right Ascension (degree) : 85.0482 gtephem: Declination (degree) : -69.3319 gtephem: Pulse Phase : 0.997773543000221 gtephem: Pulse Frequency (Hz) : 19.8340168836684 gtephem: 1st Derivative (Hz/s) : -1.88699458167048e-10 gtephem: 2nd Derivative (Hz/s/s) : 0 prompt>