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guppi_PSRFITS_v3.4_fold_template.txt
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guppi_PSRFITS_v3.4_fold_template.txt
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SIMPLE = T / file does conform to FITS standard
BITPIX = 8 / number of bits per data pixel
NAXIS = 0 / number of data axes
EXTEND = T / FITS dataset may contain extensions
HDRVER = '3.4 ' / Header version
FITSTYPE= 'PSRFITS' / FITS definition for pulsar data files
DATE = ' ' / File creation date (YYYY-MM-DDThh:mm:ss UTC)
OBSERVER= ' ' / Observer name(s)
PROJID = ' ' / Project name
TELESCOP= 'GBT' / Telescope name
ANT_X = 882589.65 / [m] Antenna ITRF X-coordinate (D)
ANT_Y = -4924872.32 / [m] Antenna ITRF Y-coordinate (D)
ANT_Z = 3943729.348 / [m] Antenna ITRF Z-coordinate (D)
FRONTEND= ' ' / Rx and feed ID
NRCVR = 2 / Number of receiver polarisation channels
FD_POLN = 'LIN' / LIN or CIRC
FD_HAND = -1 / +/- 1. +1 is LIN:A=X,B=Y, CIRC:A=L,B=R (I)
FD_SANG = 45.0 / [deg] FA of E vect for equal sig in A&B (E)
FD_XYPH = 0.0 / [deg] Phase of A^* B for injected cal (E)
BACKEND = 'GUPPI' / Backend ID
BECONFIG= 'N/A' / Backend configuration file name
BE_PHASE= -1 / 0/+1/-1 BE cross-phase:0 unknown,+/-1 std/rev
BE_DCC = 0 / 0/1 BE downconversion conjugation corrected
BE_DELAY= 0.0 / [s] Backend propn delay from digitiser input
TCYCLE = 0.0 / [s] On-line cycle time (D)
OBS_MODE= 'PSR' / (PSR, CAL, SEARCH)
DATE-OBS= ' ' / Date of observation (YYYY-MM-DDThh:mm:ss UTC)
OBSFREQ = * / [MHz] Centre frequency for observation
OBSBW = * / [MHz] Bandwidth for observation
OBSNCHAN= * / Number of frequency channels (original)
CHAN_DM = 0.0 / DM used to de-disperse each channel (pc/cm^3)
SRC_NAME= ' ' / Source or scan ID
COORD_MD= 'J2000' / Coordinate mode (J2000, GAL, ECLIP, etc.)
EQUINOX = 2000.0 / Equinox of coords (e.g. 2000.0)
RA = ' ' / Right ascension (hh:mm:ss.ssss)
DEC = ' ' / Declination (-dd:mm:ss.sss)
BMAJ = * / [deg] Beam major axis length
BMIN = * / [deg] Beam minor axis length
BPA = 0.0 / [deg] Beam position angle
STT_CRD1= ' ' / Start coord 1 (hh:mm:ss.sss or ddd.ddd)
STT_CRD2= ' ' / Start coord 2 (-dd:mm:ss.sss or -dd.ddd)
TRK_MODE= 'TRACK' / Track mode (TRACK, SCANGC, SCANLAT)
STP_CRD1= ' ' / Stop coord 1 (hh:mm:ss.sss or ddd.ddd)
STP_CRD2= ' ' / Stop coord 2 (-dd:mm:ss.sss or -dd.ddd)
SCANLEN = * / [s] Requested scan length (E)
FD_MODE = 'FA' / Feed track mode - FA, CPA, SPA, TPA
FA_REQ = 0.0 / [deg] Feed/Posn angle requested (E)
CAL_MODE= 'OFF' / Cal mode (OFF, SYNC, EXT1, EXT2)
CAL_FREQ= 0.0 / [Hz] Cal modulation frequency (E)
CAL_DCYC= 0.0 / Cal duty cycle (E)
CAL_PHS = 0.0 / Cal phase (wrt start time) (E)
STT_IMJD= * / Start MJD (UTC days) (J - long integer)
STT_SMJD= * / [s] Start time (sec past UTC 00h) (J)
STT_OFFS= * / [s] Start time offset (D)
STT_LST = * / [s] Start LST (D)
END
#
###############################################################################
#
# Ephemeris History Binary Table Extension
#
###############################################################################
#
# Note: This table has entries which should be sufficient for real-time folding
# of pulsar data. Additional parameters can be added to the table in off-line
# processing if necessary. Examples are: additional pulse frequency derivatives
# (Fn), additional DM derivatives (DMn), additional planets (T0_n, PB_n, A1_n,
# OM_n, ECC_n), additional glitches (GLEP_n, GLPH_n, GLF0_n, GLF1_n, GLF0D_n)
# and additional FITWAVE coefficients (WAVES_n, WAVEC_n).
#
XTENSION= BINTABLE / ***** Pulsar ephemeris history *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = * / width of table in bytes
NAXIS2 = * / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 104 / number of fields per row
#
EXTNAME = PSREPHEM / name of this binary table extension
#
TTYPE# = DATE_PRO / Processing date and time (UTC)
TFORM# = 24A / 24-char string
TTYPE# = PROC_CMD / Processing program and command
TFORM# = 80A / 80-char string
TTYPE# = EPHVER / Version ID for ephemeris data
TFORM# = 16A / 16-char string
TTYPE# = PSR_NAME / Pulsar Jname
TFORM# = 16A / 16-char string
TTYPE# = RAJ / RA (J2000) (hh:mm:ss.ssssssss)
TFORM# = 24A / 24-char string
TTYPE# = DECJ / Dec (J2000) (hh:mm:ss.ssssssss)
TFORM# = 24A / 24-char string
TTYPE# = PMRA / Proper motion in RA
TFORM# = 1D / Double
TUNIT# = mas/yr / Units of field
TTYPE# = PMDEC / Proper motion in DEC
TFORM# = 1D / Double
TUNIT# = mas/yr / Units of field
TTYPE# = ELONG / [deg] Ecliptic longitude
TFORM# = 1D / Double
TUNIT# = deg / Units of field
TTYPE# = ELAT / Ecliptic latitude
TFORM# = 1D / Double
TUNIT# = deg / Units of field
TTYPE# = PMELONG / Proper motion in ecliptic longitude
TFORM# = 1D / Double
TUNIT# = mas/yr / Units of field
TTYPE# = PMELAT / Proper motion in ecliptic latitude
TFORM# = 1D / Double
TUNIT# = mas/yr / Units of field
TTYPE# = PX / Parallax
TFORM# = 1D / Double
TUNIT# = mas / Units of field
TTYPE# = POSEPOCH / Epoch at which the position is measured (MJD)
TFORM# = 1D / Double
TUNIT# = MJD / Units of field
TTYPE# = IF0 / Integer mHz barycentric spin freq
TFORM# = 1J / Long integer
TUNIT# = mHz / Units of field
TTYPE# = FF0 / Fractional mHz barycentric spin freq
TFORM# = 1D / Double
TUNIT# = mHz / Units of field
TTYPE# = F1 / Time deriv of barycentric spin freq
TFORM# = 1D / Double
TUNIT# = s**(-2) / Units of field
TTYPE# = F2 / 2nd time deriv of barycentric spin freq
TFORM# = 1D / Double
TUNIT# = s**(-3) / Units of field
TTYPE# = F3 / 3rd time deriv of barycentric spin freq
TFORM# = 1D / Double
TUNIT# = s**(-4) / Units of field
TTYPE# = PEPOCH / Epoch of period/frequency determination
TFORM# = 1D / Double
TUNIT# = MJD / Units of field
TTYPE# = DM / Dispersion measure
TFORM# = 1D / Double
TUNIT# = cm**(-3) pc / Units of field
TTYPE# = DM1 / Time deriv of dispersion measure
TFORM# = 1D / Double
TUNIT# = cm**(-3) pc/yr / Units of field
TTYPE# = RM / Rotation measure
TFORM# = 1D / Double
TUNIT# = rad m**(-2) / Units of field
TTYPE# = BINARY / Binary model
TFORM# = 8A / 8-char string
TTYPE# = T0 / Epoch of periastron
TFORM# = 1D / Double
TUNIT# = MJD / Units of field
TTYPE# = PB / Binary period of pulsar
TFORM# = 1D / Double
TUNIT# = d / Units of field
TTYPE# = A1 / Projected semi-major axis of orbit
TFORM# = 1D / Double
TUNIT# = s / Units of field
TTYPE# = OM / Longitude of periastron
TFORM# = 1D / Double
TUNIT# = deg / Units of field
TTYPE# = OMDOT / [deg/yr]Periastron advance
TFORM# = 1D / Double
TUNIT# = deg/yr / Units of field
TTYPE# = ECC / Eccentricity
TFORM# = 1D / Double
TTYPE# = PBDOT / First time deriv of binary period
TFORM# = 1D / Double
TTYPE# = GAMMA / Post-Keplerian "gamma" term
TFORM# = 1D / Double
TUNIT# = s / Units of field
TTYPE# = SINI / Sine of inclination angle
TFORM# = 1D / Double
TTYPE# = M2 / Companion mass
TFORM# = 1D / Double
TUNIT# = Msun / Units of field
TTYPE# = T0_2 / Epoch of periastron [2nd orbit]
TFORM# = 1D / Double
TUNIT# = MJD / Units of field
TTYPE# = PB_2 / Binary period of pulsar [2nd orbit]
TFORM# = 1D / Double
TUNIT# = d / Units of field
TTYPE# = A1_2 / asin(i) of 2nd orbit
TFORM# = 1D / Double
TUNIT# = s / Units of field
TTYPE# = OM_2 / [deg] Longitude of periastron [2nd orbit]
TFORM# = 1D / Double
TUNIT# = deg / Units of field
TTYPE# = ECC_2 / Eccentricity [2nd orbit]
TFORM# = 1D / Double
TTYPE# = DTHETA / Relativistic deformation of the orbit
TFORM# = 1D / Double
TTYPE# = A1DOT / Rate of change of asin(i)
TFORM# = 1D / Double
TTYPE# = ECCDOT / Rate of change of eccentricity
TFORM# = 1D / Double
TUNIT# = s**(-1) / Units of field
TTYPE# = TASC / Epoch of ascending node
TFORM# = 1D / Double
TUNIT# = MJD / Units of field
TTYPE# = EPS1 / ECC sin(OM) (ELL1 binary model)
TFORM# = 1D / Double
TTYPE# = EPS2 / ECC cos(OM) (ELL1 binary model)
TFORM# = 1D / Double
TTYPE# = EPS1DOT / Time derivative of EPS1
TFORM# = 1D / Double
TUNIT# = s**(-1) / Units of field
TTYPE# = EPS2DOT / Time derivative of EPS2
TFORM# = 1D / Double
TUNIT# = s**(-1) / Units of field
TTYPE# = OM2DOT / Second time derivative of omega
TFORM# = 1D / Double
TUNIT# = rad s**(-2) / Units of field
TTYPE# = XOMDOT / Omega-dot minus GR prediction
TFORM# = 1D / Double
TUNIT# = deg/yr / Units of field
TTYPE# = XPBDOT / Pbdot minus GR prediction
TFORM# = 1D / Double
TTYPE# = MTOT / [M_sun] Total system mass
TFORM# = 1D / Double
TUNIT# = Msun / Units of field
TTYPE# = DR / Relativistic deformation of the orbit
TFORM# = 1D / Double
TTYPE# = X2DOT / Second time derivative of x=a1
TFORM# = 1D / Double
TUNIT# = s**(-1) / Units of field
TTYPE# = PMRV / Radial proper motion
TFORM# = 1D / Double
TUNIT# = mas/yr / Units of field
TTYPE# = START / Epoch of start of fit
TFORM# = 1D / Double
TUNIT# = MJD / Units of field
TTYPE# = FINISH / Epoch of end of fit
TFORM# = 1D / Double
TUNIT# = MJD / Units of field
TTYPE# = TRES / RMS timing residual
TFORM# = 1D / Double
TUNIT# = mus / Units of field
TTYPE# = NTOA / Number of TOAs in timing fit
TFORM# = 1I / Integer
TNULL# = 1 / Null value used by fits_write_col_null
TTYPE# = CLK / Terrestrial time standard
TFORM# = 12A / 12-char string
TTYPE# = EPHEM / Solar system ephemeris
TFORM# = 12A / 12-char string
TTYPE# = TZRIMJD / Reference TOA (Integer part)
TFORM# = 1J / Long Integer
TUNIT# = MJD / Units of field
TTYPE# = TZRFMJD / Reference TOA (Fractional part)
TFORM# = 1D / Double
TUNIT# = d / Units of field
TTYPE# = TZRFRQ / Frequency of reference TOA
TFORM# = 1D / Double
TUNIT# = MHz / Units of field
TTYPE# = TZRSITE / Observatory code of reference TOA
TFORM# = 8A / 8-char string
TTYPE# = GLEP_1 / Epoch [Tempo Glitch 1]
TFORM# = 1D / Double
TUNIT# = MJD / Units of field
TTYPE# = GLPH_1 / Phase increment [Tempo Glitch 1]
TFORM# = 1D / Double
TTYPE# = GLF0_1 / Permanent pulse freq increment [Glitch 1]
TFORM# = 1D / Double
TUNIT# = Hz / Units of field
TTYPE# = GLF1_1 / Permanent freq deriv incr. [Glitch 1]
TFORM# = 1D / Double
TUNIT# = s**(-2) / Units of field
TTYPE# = GLF0D_1 / Spin freq increment [Decaying Glitch 1]
TFORM# = 1D / Double
TUNIT# = Hz / Units of field
#
# New parameters for TEMPO2, ignored for EPHVER < 5
# (Commented out for now - PBD)
#TTYPE# = ECLOBL / Ecliptic obliquity
#TFORM# = 1D / Double
#TUNIT# = arcsec / Units of field
#TTYPE# = IPM / Correct for interplanetary dispersion
#TFORM# = 1I / Integer flag
#TNULL# = 1 / Default = True
#TTYPE# = TEMPO1 / Tempo1 emulation mode
#TFORM# = 1I / Integer flag
#TNULL# = 0 / Default = False
#TTYPE# = DILATEFREQ / Correct obs frequency for time dilation
#TFORM# = 1I / Integer flag
#TNULL# = 1 / Default = True
#TTYPE# = NO_SS_SHAPIRO / Turn off all solar system Shapiro delays
#TFORM# = 1I / Integer flag
#TNULL# = 0 / Default = False
#TTYPE# = PLANET_SHAPIRO / Account for planetary Shapiro delays
#TFORM# = 1I / Integer flag
#TNULL# = 1 / Default = True
#TTYPE# = CORRECT_TROPO / Correct for tropospheric delays
#TFORM# = 1I / Integer flag
#TNULL# = 1 / Default = True
#TTYPE# = UNITS / Units for SSB timescale (SI, TDB)
#TFORM# = 4A / String
#TNULL# = SI / Default = SI
#TTYPE# = NE1AU / Solar electron density scale @1AU
#TFORM# = 1D / Double
#TUNIT# = cm**(-3) pc / Units of field
#TTYPE# = TIMEEPH / Time ephemeris code to use (IF99, fb90)
#TFORM# = 6A / String
#TNULL# = IF99 / Default = IF99
#TTYPE# = T2CMETHOD / Polar Motion/Prec/Nut code (IAU2000B, TEMPO)
#TFORM# = 9A / String
#TNULL# = IAU2000B / Default = IAU2000B
#TTYPE# = DMFACTOR / DM/Dispersion Constant
#TFORM# = 1D / Double
#TUNIT# = cm**(-3) pc s**(-3) / Units of field
#TTYPE# = DMEPOCH / Epoch for DM
#TFORM# = 1D / Double
#TUNIT# = MJD / Units of field
#TTYPE# = FDDC / Scale of freq-dependent delay
#TFORM# = 1D / Double
#TUNIT# = s MHz**(-FDDI) / Units of field
#TTYPE# = FDDI / Spectral index of freq-dependent delay
#TFORM# = 1D / Double
#TTYPE# = MSS / Use Wex 1988 "MSS" in T2 binary model
#TFORM# = 1I / Integer flag
#TNULL# = 0 / Default = False
#TTYPE# = BINIT / Iterate to invert binary timing formula
#TFORM# = 1I / Integer flag
#TNULL# = 1 / Default = True
#TTYPE# = SHAPMAX / -ln(1-sini) Shapiro delay parameter
#TFORM# = 1D / Double
#TTYPE# = KOM / Position angle of ascending node
#TFORM# = 1D / Double
#TUNIT# = deg / Units of field
#TTYPE# = KIN / Inclination of orbit, for Kopeikin terms
#TFORM# = 1D / Double
#TUNIT# = deg / Units of field
#TTYPE# = KMPRA / PMRA for Kopeikin term
#TFORM# = 1D / Double
#TUNIT# = mas/yr / Units of field
#TTYPE# = KPMDEC / PMDEC for Kopeikin term
#TFORM# = 1D / Double
#TUNIT# = mas/yr / Units of field
#TTYPE# = KPMELONG / PMELONG for Kopeikin term
#TFORM# = 1D / Double
#TUNIT# = mas/yr / Units of field
#TTYPE# = KPMELAT / PMELAT for Kopeikin term
#TFORM# = 1D / Double
#TUNIT# = mas/yr / Units of field
#TTYPE# = RV / Radial velocity
#TFORM# = 1D / Double
#TUNIT# = km/s / Units of field
#TTYPE# = RVS / Radial velocity for Shklovskii-dot term
#TFORM# = 1D / Double
#TUNIT# = km/s / Units of field
#TTYPE# = VT / Transverse velocity for Doppler term
#TFORM# = 1D / Double
#TUNIT# = m s**(-2) / Units of field
#TTYPE# = RACC / Radial acceleration
#TFORM# = 1D / Double
#TUNIT# = m s**(-2) / Units of field
#TTYPE# = PMACC / Accel parallel to proper motion
#TFORM# = 1D / Double
#TUNIT# = m s**(-2) / Units of field
#TTYPE# = D_SHK / Distance for Shklovskii term
#TFORM# = 1D / Double
#TUNIT# = kpc / Units of field
#TTYPE# = D_AOP / Distance for annual-orbital parallax
#TFORM# = 1D / Double
#TUNIT# = kpc / Units of field
#TTYPE# = D_OP / Distance for orbital parallax
#TFORM# = 1D / Double
#TUNIT# = kpc / Units of field
#TTYPE# = WAVE_FREQ / Fundamental FITWAVE frequency
#TFORM# = 1D / Double
#TUNIT# = Hz / Units of field
#TTYPE# = WAVES_1 / FITWAVE sine component amplitude
#TFORM# = 1D / Double
#TUNIT# = s / Units of field
#TTYPE# = WAVEC_1 / FITWAVE cosine component amplitude
#TFORM# = 1D / Double
#TUNIT# = s / Units of field
END
#
###############################################################################
#
# TEMPO1 Polyco History Binary Table Extension
#
###############################################################################
#
XTENSION= BINTABLE / ***** Polyco history *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = * / width of table in bytes
NAXIS2 = * / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = * / Number of fields per row
EXTNAME = POLYCO / name of this binary table extension
TTYPE# = DATE_PRO / Processing date and time (UTC)
TFORM# = 24A / 24-char string
TTYPE# = POLYVER / Polyco version ID
TFORM# = 16A / 16-char string
TTYPE# = NSPAN / Span of polyco in min
TFORM# = 1I / Integer
TTYPE# = NCOEF / Nr of coefficients (<=15)
TFORM# = 1I / Integer
TTYPE# = NPBLK / Nr of blocks (rows) for this polyco
TFORM# = 1I / Integer
TTYPE# = NSITE / Observatory code
TFORM# = 8A / 8-char string
TTYPE# = REF_FREQ / Reference frequency for phase
TFORM# = 1D / Double
TUNIT# = MHz / Units of field
TTYPE# = PRED_PHS / Predicted pulse phase at obs start
TFORM# = 1D / Double
TTYPE# = REF_MJD / Reference MJD
TFORM# = 1D / Double
TTYPE# = REF_PHS / Reference phase
TFORM# = 1D / Double
TTYPE# = REF_F0 / Zero-order pulsar frequency
TUNIT# = Hz / Units of field
TFORM# = 1D / Double
TTYPE# = LGFITERR / Log_10 of polynomial fit rms error in periods
TFORM# = 1D / Double
TTYPE# = COEFF / Polyco coefficients
TFORM# = 15D / NCOEF doubles
END
#
###############################################################################
#
# Subintegration data Binary Table Extension
#
###############################################################################
#
XTENSION= BINTABLE / ***** Subintegration data *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = * / width of table in bytes
NAXIS2 = * / Number of rows in table (NSUBINT)
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = * / Number of fields per row
INT_TYPE= 'TIME' / Time axis (TIME, BINPHSPERI, BINLNGASC, etc)
INT_UNIT= 'SEC' / Unit of time axis (SEC, PHS (0-1), DEG)
SCALE = 'FluxDen' / Intensity units (FluxDen/RefFlux/Jansky)
NPOL = 4 / Nr of polarisations
POL_TYPE= 'IQUV' / Polarisation identifier (e.g., AABBCRCI, AA+BB)
TBIN = * / [s] Time per bin or sample
NBIN = * / Nr of bins (PSR/CAL mode; else 1)
NBIN_PRD= 0 / Nr of bins/pulse period (for gated data)
PHS_OFFS= 0.0 / Phase offset of bin 0 for gated data
NBITS = 1 / Nr of bits/datum (SEARCH mode 'X' data, else 1)
NSUBOFFS= 0 / Subint offset (Contiguous SEARCH-mode files)
NCHAN = * / Number of channels/sub-bands in this file
CHAN_BW = * / [MHz] Channel/sub-band width
NCHNOFFS= 0 / Channel/sub-band offset for split files
NSBLK = 1 / Samples/row (SEARCH mode, else 1)
EXTNAME = SUBINT / name of this binary table extension
TTYPE# = TSUBINT / Length of subintegration
TFORM# = 1D / Double
TUNIT# = s / Units of field
TTYPE# = OFFS_SUB / Offset from Start of subint centre
TFORM# = 1D / Double
TUNIT# = s / Units of field
TTYPE# = LST_SUB / LST at subint centre
TFORM# = 1D / Double
TUNIT# = s / Units of field
TTYPE# = RA_SUB / RA (J2000) at subint centre
TFORM# = 1D / Double
TUNIT# = deg / Units of field
TTYPE# = DEC_SUB / Dec (J2000) at subint centre
TFORM# = 1D / Double
TUNIT# = deg / Units of field
TTYPE# = GLON_SUB / [deg] Gal longitude at subint centre
TFORM# = 1D / Double
TUNIT# = deg / Units of field
TTYPE# = GLAT_SUB / [deg] Gal latitude at subint centre
TFORM# = 1D / Double
TUNIT# = deg / Units of field
TTYPE# = FD_ANG / [deg] Feed angle at subint centre
TFORM# = 1E / Float
TUNIT# = deg / Units of field
TTYPE# = POS_ANG / [deg] Position angle of feed at subint centre
TFORM# = 1E / Float
TUNIT# = deg / Units of field
TTYPE# = PAR_ANG / [deg] Parallactic angle at subint centre
TFORM# = 1E / Float
TUNIT# = deg / Units of field
TTYPE# = TEL_AZ / [deg] Telescope azimuth at subint centre
TFORM# = 1E / Float
TUNIT# = deg / Units of field
TTYPE# = TEL_ZEN / [deg] Telescope zenith angle at subint centre
TFORM# = 1E / Float
TUNIT# = deg / Units of field
TTYPE# = DAT_FREQ / [MHz] Centre frequency for each channel
TFORM# = E / NCHAN floats
TUNIT# = MHz / Units of field
TTYPE# = DAT_WTS / Weights for each channel
TFORM# = E / NCHAN floats
TTYPE# = DAT_OFFS / Data offset for each channel
TFORM# = E / NCHAN*NPOL floats
TTYPE# = DAT_SCL / Data scale factor for each channel
TFORM# = E / NCHAN*NPOL floats
TTYPE# = DATA / Subint data table
TDIM# = (*,*,*,*) / Dimensions (NBITS or NBIN,NCHAN,NPOL,NSBLK)
TFORM# = E / NBIN*NCHAN*NPOL*NSBLK int, byte(B) or bit(X)
TUNIT# = Jy / Units of subint data
END