Summary of FITS file J/MNRAS/474/4629/fits/J0738-4042.1400MHz.psrfits:
--- fits/J0738-4042.1400MHz.psrfits ⇩Download⇩ file
ext xtension bpx (dim) x2880 extname
000 main 8 () 2b
001 BINTABLE 8 (812x6/28f) 4b HISTORY [0/811(1)] [0/5(1)]
002 BINTABLE 8 (128x50/1f) 4b PSRPARAM [0/127(1)] [0/49(1)]
003 BINTABLE 8 (128x22/1f) 2b T2PREDICT [0/127(1)] [0/21(1)]
004 BINTABLE 8 (4116x1/3f) 3b BANDPASS [0/4115(1)] [0]
005 BINTABLE 8 (8336x1/20f) 6b SUBINT [0/8335(1)] [0]
006 BINTABLE 8 (104x1/2f) 2b DIG_STAT [0/103(1)] [0]
007 BINTABLE 8 (2056x1/3f) 2b DIG_CNTS [0/2055(1)] [0]
The header of the FITS file is listed below,
followed by a sample of values (limited to 1000 lines).
|
#--- fits/J0738-4042.1400MHz.psrfits
#ext xtension bpx (dim) x2880 extname
#-------------------------------------------------------------------------------
#000 main 8 () 2b
#-------------------------------------------------------------------------------
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
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H
COMMENT FITS (Flexible Image Transport System) format defined in Astronomy and
COMMENT Astrophysics Supplement Series v44/p363, v44/p371, v73/p359, v73/p365.
COMMENT Contact the NASA Science Office of Standards and Technology for the
COMMENT FITS Definition document #100 and other FITS information.
HDRVER = '5.4 ' / Header version
FITSTYPE= 'PSRFITS ' / FITS definition for pulsar data files
DATE = '2017-02-21T05:53:26' / File creation date (YYYY-MM-DDThh:mm:ss UTC)
OBSERVER= 'MJK, ' / Observer name(s)
PROJID = 'P574 ' / Project name
TELESCOP= 'PARKES ' / Telescope name
ANT_X = -4554231.6 / [m] Antenna ITRF X-coordinate (D)
ANT_Y = 2816759.1 / [m] Antenna ITRF Y-coordinate (D)
ANT_Z = -3454036.1 / [m] Antenna ITRF Z-coordinate (D)
FRONTEND= 'MULTI ' / Receiver ID
IBEAM = ' ' / Beam ID for multibeam systems
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 = -90. / [deg] FA of E vect for equal sig in A&B (E)
FD_XYPH = 0. / [deg] Phase of A^* B for injected cal (E)
BACKEND = 'PDFB3 ' / Backend ID
BECONFIG= 'pdfb3_1024_256_1024' / Backend configuration file name
BE_PHASE= -1 / 0/+1/-1 BE cross-phase:0 unknown,+/-1 std/rev
BE_DCC = 1 / 0/1 BE downconversion conjugation corrected
BE_DELAY= 0. / [s] Backend propn delay from digitiser input
TCYCLE = 10. / [s] On-line cycle time (D)
OBS_MODE= 'PSR ' / (PSR, CAL, SEARCH)
DATE-OBS= '2014-01-13T09:56:26' / Date of observation (YYYY-MM-DDThh:mm:ss UTC)
OBSFREQ = 1369. / [MHz] Centre frequency for observation
OBSBW = 256. / [MHz] Bandwidth for observation
OBSNCHAN= 1024 / Number of frequency channels (original)
CHAN_DM = 0. / [cm-3 pc] DM used for on-line dedispersion
PNT_ID = ' ' / Name or ID for pointing ctr (multibeam feeds)
SRC_NAME= 'J0738-4042' / Source or scan ID
COORD_MD= 'J2000 ' / Coordinate mode (J2000, GALACTIC, ECLIPTIC)
EQUINOX = 2000. / Equinox of coords (e.g. 2000.0)
RA = '07:38:32.300' / Right ascension (hh:mm:ss.ssss)
DEC = '-40:42:40.900' / Declination (-dd:mm:ss.sss)
BMAJ = 0.248356464572681 / [deg] Beam major axis length
BMIN = 0.248356464572681 / [deg] Beam minor axis length
BPA = 0. / [deg] Beam position angle
STT_CRD1= '07:38:32.300' / Start coord 1 (hh:mm:ss.sss or ddd.ddd)
STT_CRD2= '-40:42:40.900' / Start coord 2 (-dd:mm:ss.sss or -dd.ddd)
TRK_MODE= 'TRACK ' / Track mode (TRACK, SCANGC, SCANLAT)
STP_CRD1= '07:38:32.300' / Stop coord 1 (hh:mm:ss.sss or ddd.ddd)
STP_CRD2= '-40:42:40.900' / 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. / [deg] Feed/Posn angle requested (E)
CAL_MODE= ' ' / Cal mode (OFF, SYNC, EXT1, EXT2)
CAL_FREQ= '* ' / [Hz] Cal modulation frequency (E)
CAL_DCYC= '* ' / Cal duty cycle (E)
CAL_PHS = '* ' / Cal phase (wrt start time) (E)
CAL_NPHS= '* ' / Number of states in cal pulse (I)
STT_IMJD= 56670 / Start MJD (UTC days) (J - long integer)
STT_SMJD= 35800 / [s] Start time (sec past UTC 00h) (J)
STT_OFFS= 0.317618921875 / [s] Start time offset (D)
STT_LST = 12056.0297457038 / [s] Start LST (D)
END
END
#001 BINTABLE 8 (812x6/28f) 4b HISTORY [0/811(1)] [0/5(1)]
#-------------------------------------------------------------------------------
XTENSION= 'BINTABLE' / ***** Processing history *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 812 / width of table in bytes
NAXIS2 = 6 / number of rows
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 28 / number of fields per row
TTYPE1 = 'DATE_PRO' / Processing date and time (UTC)
TFORM1 = '24A ' / 24-char string
TTYPE2 = 'PROC_CMD' / Processing program and command
TFORM2 = '256A ' / 256-char string
TTYPE3 = 'SCALE ' / Units (FluxDen/RefFlux/Jansky)
TFORM3 = '8A ' / 8-char string
TTYPE4 = 'POL_TYPE' / Polarisation identifier
TFORM4 = '8A ' / 8-char string
TTYPE5 = 'NSUB ' / Number of Sub-Integrations
TFORM5 = '1J ' / Long integer
TTYPE6 = 'NPOL ' / Number of polarisations
TFORM6 = '1I ' / Integer
TTYPE7 = 'NBIN ' / Nr of bins per product (0 for SEARCH mode)
TFORM7 = '1I ' / Integer
TTYPE8 = 'NBIN_PRD' / Nr of bins per period
TFORM8 = '1I ' / Integer
TTYPE9 = 'TBIN ' / Time per bin or sample
TFORM9 = '1D ' / Double
TTYPE10 = 'CTR_FREQ' / Band centre frequency (weighted)
TFORM10 = '1D ' / Double
TTYPE11 = 'NCHAN ' / Number of frequency channels
TFORM11 = '1J ' / Long integer
TTYPE12 = 'CHAN_BW ' / Channel bandwidth
TFORM12 = '1D ' / Double
TTYPE13 = 'DM ' / DM used for dedispersion
TFORM13 = '1D ' / Double
TTYPE14 = 'RM ' / RM used for RM correction
TFORM14 = '1D ' / Double
TTYPE15 = 'PR_CORR ' / Projection of receptors onto sky corrected
TFORM15 = '1I ' / Integer flag
TTYPE16 = 'FD_CORR ' / Feed basis correction applied
TFORM16 = '1I ' / Integer flag
TTYPE17 = 'BE_CORR ' / Backend correction applied
TFORM17 = '1I ' / Integer flag
TTYPE18 = 'RM_CORR ' / RM correction applied
TFORM18 = '1I ' / Integer flag
TTYPE19 = 'DEDISP ' / Data dedispersed
TFORM19 = '1I ' / Integer flag
TTYPE20 = 'DDS_MTHD' / Dedispersion method
TFORM20 = '32A ' / 32-char string
TTYPE21 = 'SC_MTHD ' / Scattered power correction method
TFORM21 = '32A ' / 32-char string
TTYPE22 = 'CAL_MTHD' / Calibration method
TFORM22 = '32A ' / 32-char string
TTYPE23 = 'CAL_FILE' / Name of gain calibration file
TFORM23 = '256A ' / 256-char string
TTYPE24 = 'RFI_MTHD' / RFI excision method
TFORM24 = '32A ' / 32-char string
TTYPE25 = 'RM_MODEL' / Auxiliary Faraday rotation model description
TFORM25 = '32A ' / 32-char string
TTYPE26 = 'AUX_RM_C' / Auxiliary Faraday rotation corrected flag
TFORM26 = '1I ' / Integer flag
TTYPE27 = 'DM_MODEL' / Auxiliary dispersion model description
TFORM27 = '32A ' / 32-char string
TTYPE28 = 'AUX_DM_C' / Auxiliary dispersion corrected flag
TFORM28 = '1I ' / Integer flag
EXTNAME = 'HISTORY ' / name of this binary table extension
TUNIT9 = 's ' / units of field
TUNIT10 = 'MHz ' / units of field
TUNIT12 = 'MHz ' / units of field
TUNIT13 = 'CM-3 '
TUNIT14 = 'RAD '
EXTVER = 1 / auto assigned by template parser
END
END
#002 BINTABLE 8 (128x50/1f) 4b PSRPARAM [0/127(1)] [0/49(1)]
#-------------------------------------------------------------------------------
XTENSION= 'BINTABLE' / ***** Pulsar ephemeris *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 128 / width of table in bytes
NAXIS2 = 50 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 1 / Number of fields per row
TTYPE1 = 'PARAM ' / Text file stored row by row
TFORM1 = '128A ' / Allow 128 char per row
EXTNAME = 'PSRPARAM' / Name of this binary table extension
EXTVER = 1 / auto assigned by template parser
END
END
#003 BINTABLE 8 (128x22/1f) 2b T2PREDICT [0/127(1)] [0/21(1)]
#-------------------------------------------------------------------------------
XTENSION= 'BINTABLE' / ***** Tempo2 Predictor *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 128 / width of table in bytes
NAXIS2 = 22 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 1 / Number of fields per row
TTYPE1 = 'PREDICT ' / Text file stored row by row
TFORM1 = '128A ' / Allow 128 char per row
EXTNAME = 'T2PREDICT' / Name of this binary table extension
EXTVER = 1 / auto assigned by template parser
END
END
#004 BINTABLE 8 (4116x1/3f) 3b BANDPASS [0/4115(1)] [0]
#-------------------------------------------------------------------------------
XTENSION= 'BINTABLE' / ***** Original bandpasses *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 4116 / width of table in bytes
NAXIS2 = 1 / number of rows in table
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 3 / number of fields per row
TTYPE1 = 'DAT_OFFS' / Data offset for each bandpass
TFORM1 = '2E ' / BP_NPOL floats
TTYPE2 = 'DAT_SCL ' / Data scale factor: Val=Data*DAT_SCL + DAT_OFFS
TFORM2 = '2E ' / BP_NPOL floats
TTYPE3 = 'DATA ' / Bandpass for autocorrelations
TFORM3 = '2050I ' / NCH_ORIG*BP_NPOL integers
NCH_ORIG= 1025 / Number of channels in original bandpass
BP_NPOL = 2 / Number of polarizations in bandpass
EXTNAME = 'BANDPASS' / name of this binary table extension
TDIM3 = '(1025,2)' / Data table dimensions = (NCH_ORIG,BP_NPOL)
TUNIT3 = 'Jy ' / Bandpass amplitude units
EXTVER = 1 / auto assigned by template parser
END
END
#005 BINTABLE 8 (8336x1/20f) 6b SUBINT [0/8335(1)] [0]
#-------------------------------------------------------------------------------
XTENSION= 'BINTABLE' / ***** Subintegration data *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 8336 / width of table in bytes
NAXIS2 = 1 / Number of rows in table (NSUBINT)
PCOUNT = 0 / size of special data area
GCOUNT = 1 / one data group (required keyword)
TFIELDS = 20 / Number of fields per row
TTYPE1 = 'INDEXVAL' / Optionally used if INT_TYPE != TIME
TFORM1 = '1D ' / Double
TTYPE2 = 'TSUBINT ' / Length of subintegration
TFORM2 = '1D ' / Double
TTYPE3 = 'OFFS_SUB' / Offset from Start of subint centre
TFORM3 = '1D ' / Double
TTYPE4 = 'LST_SUB ' / LST at subint centre
TFORM4 = '1D ' / Double
TTYPE5 = 'RA_SUB ' / RA (J2000) at subint centre
TFORM5 = '1D ' / Double
TTYPE6 = 'DEC_SUB ' / Dec (J2000) at subint centre
TFORM6 = '1D ' / Double
TTYPE7 = 'GLON_SUB' / [deg] Gal longitude at subint centre
TFORM7 = '1D ' / Double
TTYPE8 = 'GLAT_SUB' / [deg] Gal latitude at subint centre
TFORM8 = '1D ' / Double
TTYPE9 = 'FD_ANG ' / [deg] Feed angle at subint centre
TFORM9 = '1E ' / Float
TTYPE10 = 'POS_ANG ' / [deg] Position angle of feed at subint centre
TFORM10 = '1E ' / Float
TTYPE11 = 'PAR_ANG ' / [deg] Parallactic angle at subint centre
TFORM11 = '1E ' / Float
TTYPE12 = 'TEL_AZ ' / [deg] Telescope azimuth at subint centre
TFORM12 = '1E ' / Float
TTYPE13 = 'TEL_ZEN ' / [deg] Telescope zenith angle at subint centre
TFORM13 = '1E ' / Float
TTYPE14 = 'AUX_DM ' / additional DM (ionosphere, corona, etc.)
TFORM14 = '1D ' / Double
TTYPE15 = 'AUX_RM ' / additional RM (ionosphere, corona, etc.)
TFORM15 = '1D ' / Double
TTYPE16 = 'DAT_FREQ' / [MHz] Centre frequency for each channel
TFORM16 = 'D ' / NCHAN doubles
TTYPE17 = 'DAT_WTS ' / Weights for each channel
TFORM17 = 'E ' / NCHAN floats
TTYPE18 = 'DAT_OFFS' / Data offset for each channel
TFORM18 = '4E ' / NCHAN*NPOL floats
TTYPE19 = 'DAT_SCL ' / Data scale factor (outval=dataval*scl + offs)
TFORM19 = '4E ' / NCHAN*NPOL floats
TTYPE20 = 'DATA ' / Subint data table
TFORM20 = '4096I ' / I (Fold) or B (1-8 bit) Search
INT_TYPE= 'TIME ' / Time axis (TIME, BINPHSPERI, BINLNGASC, etc)
INT_UNIT= 'SEC ' / Unit of time axis (SEC, PHS (0-1), DEG)
SCALE = 'Jansky ' / Intensity units (FluxDen/RefFlux/Jansky)
POL_TYPE= 'IQUV ' / Polarisation identifier (e.g., AABBCRCI, AA+BB)
NPOL = 4 / Nr of polarisations
TBIN = 0.00036612772072391 / [s] Time per bin or sample
NBIN = 1024 / Nr of bins (PSR/CAL mode; else 1)
NBIN_PRD= '* ' / Nr of bins/pulse period (for gated data)
PHS_OFFS= '* ' / Phase offset of bin 0 for gated data
NBITS = 1 / Nr of bits/datum (SEARCH mode data, else 1)
ZERO_OFF= '* ' / Zero offset for SEARCH-mode data
SIGNINT = 0 / 1 for signed ints in SEARCH-mode data, else 0
NSUBOFFS= '* ' / Subint offset (Contiguous SEARCH-mode files)
NCHAN = 1 / Number of channels/sub-bands in this file
CHAN_BW = -256. / [MHz] Channel/sub-band width
DM = 160.8 / [cm-3 pc] DM for post-detection dedisperion
RM = 12.1 / [rad m-2] RM for post-detection deFaraday
NCHNOFFS= '* ' / Channel/sub-band offset for split files
NSBLK = 1 / Samples/row (SEARCH mode, else 1)
NSTOT = '* ' / Total number of samples (SEARCH mode, else 1)
EXTNAME = 'SUBINT ' / name of this binary table extension
TUNIT2 = 's ' / Units of field
TUNIT3 = 's ' / Units of field
TUNIT4 = 's ' / Units of field
TUNIT5 = 'deg ' / Units of field
TUNIT6 = 'deg ' / Units of field
TUNIT7 = 'deg ' / Units of field
TUNIT8 = 'deg ' / Units of field
TUNIT9 = 'deg ' / Units of field
TUNIT10 = 'deg ' / Units of field
TUNIT11 = 'deg ' / Units of field
TUNIT12 = 'deg ' / Units of field
TUNIT13 = 'deg ' / Units of field
TUNIT14 = 'CM-3 '
TUNIT15 = 'RAD '
TUNIT16 = 'MHz ' / Units of field
TDIM20 = '(1024,1,4)' / (NBIN,NCHAN,NPOL) or (NCHAN,NPOL,NSBLK*NBITS/8)
TUNIT20 = 'Jy ' / Units of subint data
EXTVER = 1 / auto assigned by template parser
EPOCHS = 'VALID '
END
END
#006 BINTABLE 8 (104x1/2f) 2b DIG_STAT [0/103(1)] [0]
#-------------------------------------------------------------------------------
XTENSION= 'BINTABLE' / ***** Digitiser statistics *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 104 / Width of table in bytes
NAXIS2 = 1 / Number of rows in table (NSUBINT)
PCOUNT = 0 / Size of special data area
GCOUNT = 1 / One data group (required keyword)
TFIELDS = 2 / Number of fields per row
TTYPE1 = 'ATTEN ' / Attenuator settings
TFORM1 = '2E ' / NDIGR floats
TTYPE2 = 'DATA ' / Digitiser statistics
TFORM2 = '24E ' / NPAR*NDIGR*NCYCSUB floats
DIG_MODE= '9-bit ' / Digitiser mode
NDIGR = 2 / Number of digitised channels (I)
NPAR = 4 / Number of digitiser parameters
NCYCSUB = 3 / Number of correlator cycles per subint
DIGLEV = 'AUTO ' / Digitiser level-setting mode (AUTO, FIX)
EXTNAME = 'DIG_STAT' / Name of this binary table extension
TUNIT1 = 'db ' / Units of field
TDIM2 = '(4,2,3) ' / Data table dimensions (NPAR,NDIGR,NCYCSUB)
EXTVER = 1 / auto assigned by template parser
END
END
#007 BINTABLE 8 (2056x1/3f) 2b DIG_CNTS [0/2055(1)] [0]
#-------------------------------------------------------------------------------
XTENSION= 'BINTABLE' / ***** Digitiser counts *****
BITPIX = 8 / N/A
NAXIS = 2 / 2-dimensional binary table
NAXIS1 = 2056 / Width of table in bytes
NAXIS2 = 1 / Number of rows in table
PCOUNT = 0 / Size of special data area
GCOUNT = 1 / One data group (required keyword)
TFIELDS = 3 / Number of fields per row
TTYPE1 = 'DAT_OFFS' / Data offset for each histogram
TFORM1 = 'E ' / NDIGR floats
TTYPE2 = 'DAT_SCL ' / Data scale factor for each histogram
TFORM2 = 'E ' / NDIGR floats
TTYPE3 = 'DATA ' / Digitiser count data
TFORM3 = '1024I ' / NPTHIST*NDIGR integers
DIG_MODE= '9-bit ' / Digitiser mode
DYN_LEVT= 0. / Timescale for dynamic leveling
NDIGR = 2 / Number of digitised channels (I)
NLEV = 512 / Number of digitiser levels
NPTHIST = 512 / Number of points in histogram (I)
DIGLEV = 'AUTO ' / Digitiser level-setting mode (AUTO, FIX)
LEVSEPN = '* ' / Separation of dig. threshold levels in rms
EXTNAME = 'DIG_CNTS' / Name of this binary table extension
TDIM3 = '(512,2) ' / Data table dimensions (NPTHIST,NDIGR)
EXTVER = 1 / auto assigned by template parser
END
END