Control commands allowed in free-format headers: CLK [or CLOCK] Terrestrial time standard Allowed values: 'UNCORR' (default), 'UTC(NIST)', 'UTC(BIPM)', 'TT(BIPM)', 'PTB', 'AT1', and 'TT(BIPMxx)' where xx is any value allowed by the entries in $TEMPO/tempo.cfg. CLOCK alias for CLK COORD Input coordinate system Allowed values: 'B1950', 'J2000' (default) DMDATA Use per-TOA DM data from wideband TOAs DMVAR1 Earliest MJD for which DM variations will be applied Allowed values: floating point MJD DMVAR2 Latest MJD for which DM variations will be applied Allowed values: floating point MJD DMX Fit DM offsets over intervals of x days Allowed values: floating point span length 'x' EPHEM Solar system ephemeris Allowed values: First five characters of file names listed in tempo.cfg file (see below). Typically 'DE200' and 'DE405' IBOOT Bootstrap error analysis, with 2^n iterations Allowed values: integers n INFO Use the specified Tempo2-style flag for INFO values. Allowed values: flag name including leading '-' NDDM Use delta-DM values specified on TOA lines (added to .par DM value). Allowed value: integer 1 NE_SW Aalias for SOLARN0 NITS Iterate solution n times, or fewer if it converges. Allowed values: integers n Special case: n=9: iterate until convergence NPRNT Print every 10^n TOA line in file tempo.lis Allowed values: integers n PHIMIN Minimum Earth-Pulsar-Sun angle for inclusion in analysis TOAs with angle less than PHIMIN are given zero weight Allowed values: floating point angle x in degrees PSR Pulsar name (normally without the leading B or J) Allowed values: up to 12 characters BINARY Binary model to use (see separate BINARY MODELS documentation) Allowed values: 'NONE', 'BT', 'EH', 'DD', 'DDGR', 'H88', 'BT+', 'DDT', 'MSS', 'ELL1', 'ELL1H', 'BTX', 'DDS', 'DDK', 'DDFWHE', 'BT1P', 'BT2P' SOLARN0 [or NE_SW] Solar system electron density parameter "n0" Solar system electron density modeled as n(r)=n0*(r0/r)^2, r0=1AU, r=Distance from Sun, n0 is density at 1 AU in electrons/cm^3 Default value is 10. SOLARN0_1 Linear time rate of change of solar electron density in units of electrons/cm^3/yr. If this parameter is used then SOLARN0 is taken as correct at epoch PEPOCH and SOLARN01 gives the change at other dates. Default value is 0. START Ignore TOAs before this date (MJD) (if flag is nonzero) Allowed values: single-precision real numbers Allowed flags: integers; START will be used only if flag is nonzero FINISH Ignore TOAs after this date (MJD) (if flag is nonzero) Allowed values: single-precision real numbers Allowed flags: integers; FINISH will be used only if flag is nonzero GAIN Fraction of correction added to each parameter on each iteration Allowed values: positive real numbers Default value: 1 TZRMJD Reference toa for phase prediction Allowed values: MJD (integer, fraction read separately) TZRFRQ Frequency of reference TOA for phase prediction Allowed values: float TZRSITE Observatory of reference TOA for phase prediction Allowed values: observatory site codes