> gtpphase evfile=my_pulsar_events_v3.fits \
            scfile=my_pulsar_spacecraft_data_v3r1.fits \
            psrdbfile=master_pulsardb_v3.fits psrname="PSR B0540-69" \
            ephstyle=FREQ ephepoch=54368.11094817 timeformat=MJD timesys=TDB \
            ra=85.0482 dec=-69.3319 phi0=0.0 f0=19.83401688366839422996 \
            f1=-1.8869945816704768775044e-10 f2=0.0