POLYCO.DAT
The polynomial ephemerides are written to file 'polyco.dat'. Entries
are listed sequentially within the file. The file format is:
Line Columns Item
---- ------- -----------------------------------
1 1-10 Pulsar Name
11-19 Date (dd-mmm-yy)
20-31 UTC (hhmmss.ss)
32-51 TMID (MJD)
52-72 DM
74-79 Doppler shift due to earth motion (10^-4)
80-86 Log_10 of fit rms residual in periods
2 1-20 Reference Phase (RPHASE)
21-38 Reference rotation frequency (F0)
39-43 Observatory number (see note ** below)
44-49 Data span (minutes)
50-54 Number of coefficients
55-75 Observing frequency (MHz)
76-80 Binary phase
3* 1-25 Coefficient 1 (COEFF(1))
26-50 Coefficient 2 (COEFF(2))
51-75 Coefficient 3 (COEFF(3))
* Subsequent lines have three coefficients each, up to NCOEFF
The pulse phase and frequency at time T are then calculated as:
DT = (T-TMID)*1440
PHASE = RPHASE + DT*60*F0 + COEFF(1) + DT*COEFF(2) + DT^2*COEFF(3) + ....
FREQ(Hz) = F0 + (1/60)*(COEFF(2) + 2*DT*COEFF(3) + 3*DT^2*COEFF(4) + ....)
** Observatory numbers are integers based on the observatory code.
See documentation file obsys.txt (describing file obsys.dat) for
more details.