Name | value | Description |
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 | '3.43 ' | Header version |
FITSTYPE | 'PSRFITS ' | FITS definition for pulsar data files |
DATE | '2011-07-20T02:47:08' | File creation date (YYYY-MM-DDThh:mm:ss UTC) |
OBSERVER | 'team awesome' | Observer name(s) |
PROJID | 'p2030 ' | Project name |
TELESCOP | 'ARECIBO 305m' | Telescope name |
ANT_X | 2390486.9 | [m] Antenna X-coordinate from vlbi |
ANT_Y | -5564731.44 | [m] Antenna Y-coordinate |
ANT_Z | 1994720.45 | [m] Antenna Z-coordinate |
FRONTEND | 'alfa ' | Rx and feed ID. names are: ch 327 430 800 lbw sbw sbn sbh cb cbh xb sbtx alfa |
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 | 0. | [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 | 'pdev ' | Backend ID |
BECONFIG | 'N | A ' / Backend configuration file name |
BE_PHASE | 0 | 0/+1/-1 BE cross-phase:0 unknown,+/-1 std/rev |
BE_DCC | 0 | 0/1 BE downconversion conjugation corrected |
BE_DELAY | 0. | [s] Backend propn delay from digitiser input |
TCYCLE | 0. | [s] On-line cycle time (D) |
OBS_MODE | 'SEARCH ' | (PSR, CAL, SEARCH) |
DATE-OBS | '2011-07-20T02:42:39' | Date of observation (YYYY-MM-DDThh:mm:ss UTC) |
OBSFREQ | 1300.168 | [MHz] Centre frequency for observation |
OBSBW | 172.032 | [MHz] Bandwidth for observation |
OBSNCHAN | 512 | Number of frequency channels (original) |
SRC_NAME | 'J1844+0115' | Source or scan ID |
COORD_MD | 'J2000 ' | Coordinate mode (J2000, GAL, ECLIP, etc.) |
EQUINOX | 2000. | Equinox of coords (e.g. 2000.0) |
RA | '18:44:26.9777' | Right ascension (hh:mm:ss.ssss) |
DEC | '+01:21:01.4361' | Declination (-dd:mm:ss.sss) |
BMAJ | 0. | [deg] Beam major axis length |
BMIN | 0. | [deg] Beam minor axis length |
BPA | 0. | [deg] Beam position angle |
STT_CRD1 | '18:44:26.9777' | Start coord 1 (hh:mm:ss.sss or ddd.ddd) |
STT_CRD2 | '+01:21:01.4361' | Start coord 2 (-dd:mm:ss.sss or -dd.ddd) |
TRK_MODE | 'ON ' | Track mode (TRACK, SCANGC, SCANLAT) |
STP_CRD1 | '18:44:26.9777' | Stop coord 1 (hh:mm:ss.sss or ddd.ddd) |
STP_CRD2 | '+01:21:01.4361' | Stop coord 2 (-dd:mm:ss.sss or -dd.ddd) |
SCANLEN | 621.999976190476 | [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 | 'OFF ' | Cal mode (OFF, SYNC, EXT1, EXT2) |
CAL_FREQ | 0. | [Hz] Cal modulation frequency (E) |
CAL_DCYC | 0. | Cal duty cycle (E) |
CAL_PHS | 0. | Cal phase (wrt start time) (E) |
STT_IMJD | 55762 | Start MJD (UTC days) (J - long integer)
|
STT_SMJD | 9758 | [s] Start time (sec past UTC 00h) (J)
|
STT_OFFS | 0.99999993853271 | [s] Start time offset (D)
|
STT_LST | 65147.549366613 | [s] Start LST (D) |
Name | value | Description |
XTENSION | 'BINTABLE' | ***** pdev spectrometer info ***** |
BITPIX | 8 | N/A |
NAXIS | 2 | 2-dimensional binary table |
NAXIS1 | 0 | Width of table in bytes |
NAXIS2 | 0 | Number of rows in table (NSUBINT) |
PCOUNT | 0 | Size of special data area |
GCOUNT | 1 | One data group (required keyword) |
TFIELDS | 0 | Number of fields per row |
EXTNAME | 'AOGEN ' | |
FRONTEND | 'alfa ' | Receiver name |
BACKEND | 'pdev ' | Backend name |
BACKENDM | 'summed ' | Backend mode description |
CALTYPE | 'hcorcal ' | diode calibration mode hcorcal,hca |
OBSMODE | 'ON ' | Name of observation pattern (e.g. ONOFF) |
SCANTYPE | 'ON ' | Type of scan (as part of pattern - e.g. ON OFF) |
PAT_ID | 120000119 | Unique number for obs pattern YDDDnnnnn |
SCAN_ID | 120000119 | Unique number for scan YDDDnnnnn |
PLTPWRA | -41.2788429260254 | platform power meter reading polA dbm |
PLTPWRB | -39.7386589050293 | platform power meter reading polB dbm |
CNTLPWRA | -41.1292953491211 | control room power meter polA dbm |
CNTLPWRB | -41.4964332580566 | control room power meter polB dbm |
SYN1 | 1625000000. | Platform synthesizer 1st lo (hz) |
SYN2 | 325000000. | ctrlRoom 2nd lo synth value this band (hz) |
TCALNCF | 0 | Number of coef. in polyFit for tcal |
TCALACF0 | 0. | polyfit tcl polA constant (Ghz) |
TCALACF1 | 0. | polyfit tcl polA fr(Ghz) |
TCALACF2 | 0. | polyfit tcl polA f (Ghz) |
TCALACF3 | 0. | polyfit tcl polA f (Ghz) |
TCALBCF0 | 0. | polyfit tcl polB constant (Ghz) |
TCALBCF1 | 0. | polyfit tcl polB fr(Ghz) |
TCALBCF2 | 0. | polyfit tcl polB f (Ghz) |
TCALBCF3 | 0. | polyfit tcl polB f (Ghz) |
NUMBEAMS | 7 | Num beams in this observation (1,7,or 8) |
NUMIFS | 2 | Num subbands for this beam (1-8 or 1-2) |
NUMPOLS | 1 | Num pols for this IF and this beam (1,2,or 4) |
BEAM | 1 | Num this beam (1, 0 - 6 or 0 - 7) |
PRFEED | 0 | ALFA beam used as pointing center |
INPUT_ID | 1 | 0..6 alfa, mixer num 0..6 for single pix |
MASTER | 0 | 0=Gregorian dome 1=Carriage house |
LBWHYB | 0 | 1=LBandWide Hybrid is in (for circular pol) |
SHCL | 0 | 1 if receiver shutter closed |
SBSHCL | 1 | 1 if S-band receiver shutter closed |
RFNUM | 17 | Platform position of the receiver selector |
CALRCVMX | 15 | Platform cal selector */ |
ZMNORMAL | 1 | 1 straight thru, 0 flipped pols upstairs |
RFATTNA | 11 | rf attenuator 0.11 db polA |
RFATTNB | 11 | rf attenuator 0.11 db polB |
IF1ATTNA | 0 | if1 attenuator 0.11 db polA |
IF1ATTNB | 0 | if1 attenuator 0.11 db polB |
IF1SEL | 6 | IF sel:1/300,2/750,3/1500,4/10GHz1500,5-thru |
AC2SW | 0 | Platform AC power to various instruments |
HYBRID | 0 | 10Ghz Upconverter hybrid in use |
PHBSIG | 0 | 10Ghz Upconverter signal ph adjust |
PHBLO | 0 | 10Ghz Upconverter LO phase adjust |
XFNORMAL | 1 | 1 downstairs xfrer switch straight thru |
AMPGAINA | 8 | Gain of control room amplifiers polA |
AMPGAINB | 8 | Gain of control room amplifiers polB |
NOISE | 0 | Control room noise src in use |
INPFRQ | 4 | Control room input distributor position |
MIXER | 0 | Control room mixer source switches |
VLBAINP | 0 | Control room VLBA input switch position |
SYNDEST | 0 | Control room synth destination for this brd |
CALSRC | 3 | Control room cal mux source bit |
BLANK430 | 0 | Control room 430 blanking on |
EXTVER | 1 | auto assigned by template parser |
Name | value | Description |
XTENSION | 'BINTABLE' | ***** pdev spectrometer info ***** |
BITPIX | 8 | N/A |
NAXIS | 2 | 2-dimensional binary table |
NAXIS1 | 0 | Width of table in bytes |
NAXIS2 | 0 | Number of rows in table (NSUBINT) |
PCOUNT | 0 | Size of special data area |
GCOUNT | 1 | One data group (required keyword) |
TFIELDS | 0 | Number of fields per row |
EXTNAME | 'PDEV ' | |
CALCTL | 0 | 0:calAlwaysOff,1:calAlwaysOn, 2:winking cal |
WCALON | 0 | winking cal dumps for calon |
WCALOFF | 0 | winking cal dumps for caloff |
WCALPHAS | 0. | Position cal change in last dump. |
ADRMS_AI | 32.3 | a/d rms polA digI |
ADRMS_AQ | 29.8 | a/d rms polA digQ |
ADRMS_BI | 30. | a/d rms polB digI |
ADRMS_BQ | 30. | a/d rms polB digQ |
ADMN_AI | -0.2 | a/d mean polA digI |
ADMN_AQ | -0.2 | a/d mean polA digQ |
ADMN_BI | 0.6 | a/d mean polB digI |
ADMN_BQ | 0.2 | a/d mean polB digQ |
BBMGN_A | 11 | bbm gain polA db |
BBMGN_B | 9 | bbm gain polB db |
ADTIME | 1311127033 | secs 1970 when a/d rms measured |
PHMAINID | -16793873 | pdev hdr id |
PHSP1ID | 780401409 | pdev sp1hdr id |
PHADCF | 172030000 | A/D freq read from pdev |
PHBSWAP | 1 | pdev byte swap code |
PHBLKSIZ | 1032 | pdev bytes in buffer |
PHNBLKS | 9499636 | pdev nblocks |
PHBEAM | 1 | pdev beam 0.. |
PHSUBBND | 1 | pdev subband. 0 low 1 hi |
PHLO1MIX | 1625000000 | pdev lo1mix |
PHLO2MX0 | 175000000 | pdev lo2mix subband 0 |
PHLO2MX1 | 325000000 | pdev lo2mix subband 1 |
PHADCCLK | 172032000 | pdev adcclk from pnet.conf file |
PHSTTIME | 1311129759 | pdev seconds from 1970 |
PHRESV1 | 1 | pdev resv1 b0->psrvphil |
PHIF1 | 250000000 | pdev if1 from pnet.conf |
PHFMTWID | 1 | pdev output bits 0-8,1=16,2=32 |
PHFMTTYP | 0 | pdev 0-stokesI,1=S0,S1,2=s0,s1,s2,s3 |
PHFFTLEN | 512 | pdev fft length |
PHCHN1 | 0 | pdev first chan to dump. cnt from 0 |
PHCHN2 | 511 | pdev last chan to dump.cnt from 0 |
PHFFTACC | 22 | pdev ffts to accumulate |
PHDRPACC | 0 | pdev ffts to drop each accum |
PHARSEL | 0 | pdev where A real signal originates |
PHAISEL | 1 | pdev where A img signal originates |
PHBRSEL | 2 | pdev where B real signal originates |
PHBISEL | 3 | pdev where B img signal originates |
PHARNEG | 0 | pdev negate A real signal |
PHAINEG | 0 | pdev negat A img signal |
PHBRNEG | 0 | pdev negate B real signal |
PHBINEG | 0 | pdev negat B img signal |
PHPFBBYP | 0 | pdev bypass pfb |
PHPSHIFT | 511 | pdev PSHIFT for butterflys |
PHUPSHFT | 0 | pdev upshift after fft |
PHDSH_S0 | 0 | pdev S0 downshift before accum |
PHDSH_S1 | 0 | pdev S1 downshift before accum |
PHDSH_S2 | 0 | pdev S2 downshift before accum |
PHDSH_S3 | 0 | pdev S3 downshift before accum |
PHASH_S0 | 15 | pdev S0 upshift 40bits accum |
PHASH_S1 | 15 | pdev S1 upshift 40bits accum |
PHASH_S2 | 15 | pdev S2 upshift 40bits accum |
PHASH_S3 | 15 | pdev S3 upshift 40bits accum |
PHASH_SI | 15 | pdev SI upshift 40bits accum |
PHDRPST | 5 | pdev ffts to drop at start |
PHDLO | 0 | pdev digial LO |
PHDLOPH | 0 | pdev digital lo phase |
PHHRMODE | 0 | pdev hiRes Mode |
PHHRDEC | 8 | pdev hiRes decimation |
PHHRSHIF | 9 | pdev hiRes shift |
PHHROFF | 8 | pdev hiRes offset |
PHHRLPF | 0 | pdev timeDomain data code |
PHHRDWEL | 0 | pdev hiRes dwell |
PHHRINC | 0 | pdev hiRes digital lo increment |
PHBLKSEL | 15 | gpio pin for extern blank 0xffff=none |
PHBLKPER | 0 | 0-use extBlnkTime.>0=# ticks blank afterPulse |
PHADCTHR | 1 | # adcOvf before blank. 0xffff=off |
PHADCDWL | 0 | extend adcovfBlank by this many ticks |
PHCALSEL | 1 | gpio pin for cal input. 0xf--> no cal |
PHCALPH | 0 | 0 to FCNT-1. when cal transitions in dump |
PHCALCTL | 0 | B1=1 --> winking cal else:B0=1 calOn,b0=0 calof |
PHCALON | 2 | # of dumps for winking calon (if enabled) |
PHCALOFF | 2 | # of dumps for winking caloff (if enabled) |
EXTVER | 1 | auto assigned by template parser |
Name | value | Description |
XTENSION | 'BINTABLE' | ***** Subintegration data ***** |
BITPIX | 8 | N/A |
NAXIS | 2 | 2-dimensional binary table |
NAXIS1 | 15950148 | width of table in bytes |
NAXIS2 | 115 | Number of rows in table (NSUBINT) |
PCOUNT | 0 | size of special data area |
GCOUNT | 1 | one data group (required keyword) |
TFIELDS | 18 | 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 | 1 | Number of polarisations |
POL_TYPE | 'AA+BB ' | Polarisation identifier (e.g., AABBCRCI, AA+BB) |
TBIN | 6.54761904761905E-05 | [s] Time per bin or sample
|
NBIN | 1 | Nr of bins (PSR/CAL mode; else 1) |
NBIN_PRD | 0 | Nr of bins/pulse period (for gated data) |
PHS_OFFS | 0. | Phase offset of bin 0 for gated data |
NBITS | 16 | Nr of bits/datum (SEARCH mode 'X' data, else 1) |
NSUBOFFS | 268 | Subint offset (Contiguous SEARCH-mode files)
|
NCHAN | 512 | Number of channels/sub-bands in this file |
CHAN_BW | -0.336 | [MHz] Channel/sub-band width
|
NCHNOFFS | 0 | Channel/sub-band offset for split files |
NSBLK | 15270 | Samples/row (SEARCH mode, else 1) |
EXTNAME | 'SUBINT ' | name of this binary table extension |
The
following entries define the data and status array
dimensions and datatypes. |
||
TTYPE17 |
'DATA ' |
Subint data table uses
field keyword DATA |
TDIM17 |
'(1,512,1,15270)' | dataAr Dimensions (NBIN,NCHAN,NPOL,NSBLK) |
TFORM17 |
'7818240I' |
NBIN*NCHAN*NPOL*NSBLK
I(short), B(byte) or X(bit) |
TTYPE18 |
'STAT ' |
Subint pdev stat table |
TFORM18 |
'152700I ' |
short |
TDIM18 | '(10,15270)' | statAr Dimensions (10,NSBLK) |
Name | value | Description |
TSUBINT | double [sec] | Length of subintegration (wall time) |
OFFS_SUB | double [sec] | Offset from Start of scan to subint center |
LST_SUB | double [sec] | LST at subint centre |
RA_SUB | double [deg] | RA (J2000) at subint center |
DEC_SUB | double [deg] | Dec (J2000) at subint center |
GLON_SUB | double [deg] | [deg] Gal longitude at subint center |
GLAT_SUB | double [deg] | [deg] Gal latitude at subint center |
FD_ANG | float [deg] | [deg] Feed angle at subint center
|
POS_ANG | float [deg] | [deg] Position angle of feed at subint center |
PAR_ANG | float [deg] | [deg] Parallactic angle at subint center |
TEL_AZ | float [deg] | [deg] Telescope azimuth at subint center. pointing model
removed This is the azimuth encoder value from the dome side. For dome observing it is the feed azimuth. For ch house observing it is the source azimuth. |
TEL_ZEN | float [deg] | [deg] Telescope zenith angle at subint center. pointing
model removed. |
DAT_FREQ | fltarr(nchan) | [MHz] center frequency for each channel
|
DAT_WTS | fltarr(nchan) | Weights for each channel
|
DAT_OFFS | fltarr(nchan) | Data offset for each channel
|
DAT_SCL | fltarr(nchan) | Data scale factor for each channel
|
DATA | intarr(nbin*nchan*npol*nsblk) | Subint data table |
STAT | sharr(10*nsblk) | Subint pdev stat table
|
TDIM17 | '(1,512,1,15270)' | Dimensions (NBITS or NBIN,NCHAN,NPOL,NSBLK) |
TUNIT17 | 'Jy ' | Units of subint data |
TDIM18 | '(10,15270)' | Dimensions (10,NSBLK) |