General description: Each ft file contains the collapsed 1-D whirl from one of the 120 spectra from the MARVELS1 instrument.
Naming convention: ft_SZZZ_MARVELS1.YYYY-MM-DDTRR:NN:CC.CCC.whrl, where ZZZ is a 3-digit spectrum number from 1-120, and YYYY-MM-DDTRR:NN:CC.CCC is a standard IRAF-compatible calendar timestamp in UTC corresponding to when the exposure was originally taken, where YYYY is the year, MM is the month, DD is the day, RR is the hour, NN is the minute, CC.CCC is the seconds field..
Approximate size: 0.2 Mbytes.
File type: FITS
Read by products: MARVELS_REDUCE_PIPELINE/testwrapper.pro
Written by products: MARVELS_REDUCE_PIPELINE/reduceMARVELS.pro
| HDU0 | 4096 float vector | Phase in radians |
| HDU1 | 4096 float vector | Visibility (dimensionless) |
| HDU2 | 4096 float vector | Phase error in radians |
| HDU3 | 4096 float vector | Visibility error |
| HDU4 | 4096 float vector | Fringe frequency (radians/pixel) |
| HDU5 | 4096 float vector | Fringe frequency error |
| HDU6 | 4096 float vector | Flux (electron counts) |
| HDU7 | 4096 float vector | DC offset of sine fit (normalized) |
| HDU8 | 4096 float vector | DC offset error |
| HDU9 | 1 x 20 binary table | Provenance and image header info |
SIMPLE = T /Primary Header created by MWRFITS v1.2 BITPIX = -32 / NAXIS = 1 / NAXIS1 = 4096 / EXTEND = T /Extensions may be present PCOUNT = 0 /Number of group parameters GCOUNT = 1 /Number of groups DATE_FH = '2010:084:12:23:59' / UT of header creation (YYYY:DAY:HH:MM:SS) DATE = '2010-03-26' / Date Format is YYYY-MM-DD TIME = '12:23:59.26' / Start of exposure FILENAME= 'MARVELS1.2010-03-26T12:23:59.260.fits' / Name of Output File FILEDIR = '/data/55281/et1/' / Directory of Output File PMTMSINT= 100 / PMT integration time in milli-seconds PMTCOADD= 10 / number of PMT integrations co-added PMTUPDAT= 1.000000 / seconds between each PMT counts read PMTAVG = 41945.453125 / Average PMT counts during obs. PMTRMS = 8910.413086 / RMS deviation of PMT counts during obs. PMTMIN = 13778 / Minimum PMT counts during obs. PMTMAX = 45428 / Maximum PMT counts during obs. PMTCENTS= 6 / offset time of median PMT flux (seconds) ORIGIN = 'SDSS/APO' / FITS file originator INSTRUME= 'MARVELS1' / name of instrument acquiring data DETECTOR= 'SI-620' / name of CCD OBSERVAT= 'APO' / Name of Observatory TELESCOP= 'SDSS_2.5m' / Name of Telescope OBSERVER= 'NULL' / ID of Observer Taking Data JD = 2455282.016655 / Julian date at start of observation MJD = 55281.516655 / Modified Julian date FCJD = 2455282.016725 / Flux centered Julian date ACQTYPE = 'Light' / type of CCD exp. (Light / Dark / Bias) OBSTYPE = 'SCIENCE' / type of obs. (science / engineering) DATAMODE= 'SAVE' / Disposition of data (i.e. save/discard) USERNOTE= '' / Optional note made by user about obs. UTC-OBS = '12:23:59.1' / UTC of Start of Exp. UTC-END = '12:24:10.2' / UTC of End of Exp. LST-OBS = '17:36:04.099' / LST of Start of Exp. LST-END = '17:36:15.129' / LST of End of Exp. CARTID = -9999 / Cartridge ID no. PLATEID = 'NULL' / APO Plate ID No. OBJECT = 'NULL' / Nickname for plate (eg. 51PEG) EXPTIME = 11.000000 / Length of Exp. (seconds) EXPTYPE = 'TIO' / Exp. type keyword (from observing GUI) OBSFLAG = 'GOOD' / Exp. Quality Flag (GOOD/BAD/JUNK) SEEING = -9999.000000 / Approx. max. see-ing (PSF max FWHM in arcsec) IMGAVG = 4911.822754 / average data value in image IMGMAX = 32669 / maximum data value in image IMGMIN = 444 / minimum data value in image IMAGECNT= 1403 / image grab count of DataAcqServer IMAGE_ID= 3377 / exposure count of SI-CCD controller SNRMAX = -9999.000000 / maximum Signal/Noise of spectra SNRMEDN = -9999.000000 / median Signal/Noise of spectra SNRMIN = -9999.000000 / minimum Signal/Noise of spectra SNRAVG = -9999.000000 / average Signal/Noise of spectra SNRSTDEV= -9999.000000 / std. dev. of Signal/Noise of spectra BUNIT = 'ADU' / data units are Analog to Digital convert Units GAIN = 1.460000 / gain of readout in electrons per ADU RDNOISE = 4.580000 / Readout noise st.dev. in electrons per pixel RDRATE = 200.000000 / Readout rate in kHz RDPORT = 'A' / Port from which CCD is being read (A/B/C/D) READMODE= 2 / Readout mode number READTIME= 84 / Length of Readout (seconds) READNOIS= 4.580000 / Readout noise st.dev. in electrons per pixel READRATE= 200.000000 / Readout rate in kHz READPORT= 'A' / Port from which CCD is being read (A/B/C/D) CCD_ATTN= 0 / Analog Attenuation set for CCD CCDSEC = '[1:4096], [1:4096]' / Section of CCD IN USE CRYOCOOL= 1 / Status of CrycoCooler (1=ON/0=OFF) CCDTEMP = -106.199997 / CCD Chip Temp. in Deg. Celsius CCDPRES = 0.001900 / CCD Dewar Pressure in torr CCDSHUT = 1 / Shutter Status During Exposure (1=OPEN/0=CLOSED ICEL-ID = 'NULL' / Unique Name of I2 Cell ICEL-T = -9999.000000 / Mean I2 Temp. in Deg. Celsius ICEL-RMS= -9999.000000 / RMS Temp. During Exp. in Deg. Celsius ICEL-POS= 'NULL' / I2 Cell Pos. (IN/OUT) ECEL-ID = 'NULL' / Unique Name of empty I2 Cell ECEL-T = -9999.000000 / Mean empty Cell Temp. in Deg. Celsius ECEL-RMS= -9999.000000 / Empty Cell RMS Temp. in Deg. Celsius ECEL-POS= 'NULL' / Empty I2 Cell Pos. (IN/OUT) DEWPOINT= -9999.000000 / weatherData (dewpoint) DEWDEP = -9999.000000 / weatherData (dewpointDep) DUSTA = -9999.000000 / weatherData (dusta) DUSTB = -9999.000000 / weatherData (dustb) DUSTC = -9999.000000 / weatherData (dustc) DUSTD = -9999.000000 / weatherData (dustd) GUSTD = -9999.000000 / weatherData (gustd) HUMIDITY= -9999.000000 / weatherData (humidity) HUMIDOUT= -9999.000000 / weatherData (humidout) PRESSURE= -9999.000000 / weatherData (pressure) WINDD = -9999.000000 / weatherData (windd) WINDS = -9999.000000 / weatherData (winds) FBRPOS = 'NULL' / Fiber Position (TELE/CALI/NONE) PHAS1 = -9999.000000 / Mean Phase of Int. During Exp. (radians) PHASRMS1= -9999.000000 / Mean Phase RMS of Int. During Exp. (radians) DENS1 = -9999.000000 / Mean Fringe Density of Int. During Exp. (pix/fr DENSRMS1= -9999.000000 / Mean Fringe Density RMS of Int. During Exp. (pi TILT1 = -9999.000000 / Mean Tilt of Fringes During Exp. (pix) TILTRMS1= -9999.000000 / Mean Tilt RMS of Fringes During Exp. (pix) FOCUS = -9999.000000 / Focus piston (in microns) ALARMOBS= 'none' / Obs. event alarm ALARMTCC= 'none' / TCC access alarm ALARMDCA= 'none' / DC agent alarm ALARMDAS= 'none' / DAS alarm RA = -9999.000000 / RA of tel. boresight in DEGREES DEC = -9999.000000 / DEC of tel. boresight in DEGREES TAIMJD = 55281.517046 / Mod. Julian Date in TAI time EPOCH = 0 / Epoch of Coordinates. EQUINOX = 2000 / Equinox of Coordinates. AZ = 121.000000 / Azimuth (encoder) of tel. ALT = 30.000000 / Altitude (encoder) of tel. ROTPOS = 0.000000 / User spec. rotation angle SHUTTERA= 0 / Shutter A: Sky: 0=closed, 1=open SHUTTERB= 0 / Shutter B: Laser: 0=closed, 1=open THARINT = 45 / ThAr Lamp Intensity (0-100, in integers) TUNGINT = 75 / Tung Lamp Intensity (0-100, in integers) THARLAMP= 'ON' / ThAr Lamp Status (ON/OFF) TUNGLAMP= 'ON' / Tung Lamp Status (ON/OFF) DIFFUSER= 'OUT' / Diffuser (A) @ OUT FILTER = 'CLOSED' / Filter (C) @ CLOSED IODINE-C= 'IN' / Iodine-Cell (B) @ IN INDEXR-A= 2 / steps from Datum of indexor A (Diffuser) INDEXR-B= 5 / steps from Datum of indexor B (Iodine-Cell) INDEXR-C= 860 / steps from Datum of indexor C (Filter) P1 = 10.498112 / Mean Pressure(PSI) of Channel 1 P2 = 10.467212 / Mean Pressure(PSI) of Channel 2 P3 = 10.484951 / Mean Pressure(PSI) of Channel 3 P1RMS = 0.0 / RMS Pressure(PSI) of Channel 1 P2RMS = 0.0 / RMS Pressure(PSI) of Channel 2 P3RMS = 0.0 / RMS Pressure(PSI) of Channel 3 P1MIN = 10.498112 / min. Pressure(PSI) of Channel 1 P2MIN = 10.467212 / min. Pressure(PSI) of Channel 2 P3MIN = 10.484951 / min. Pressure(PSI) of Channel 3 P1MAX = 10.498112 / max. Pressure(PSI) of Channel 1 P2MAX = 10.467212 / max. Pressure(PSI) of Channel 2 P3MAX = 10.484951 / max. Pressure(PSI) of Channel 3 T1 = 28.001699 / Mean Temp. of North in deg. Celsius T2 = 28.002850 / Mean Temp. of South in deg. Celsius T3 = 28.002701 / Mean Temp. of East in deg. Celsius T4 = 28.002100 / Mean Temp. of West in deg. Celsius T5 = 27.997499 / Mean Temp. of Top in deg. Celsius T6 = 27.979801 / Mean Temp. of Bottom in deg. Celsius T7 = 35.003201 / Mean Temp. of CCD skin in deg. Celsius T8 = 28.689199 / Mean Temp. of CCD house in deg. Celsius T1RMS = 0.003002 / RMS Temp. of North in deg. Celsius T2RMS = 0.005237 / RMS Temp. of South in deg. Celsius T3RMS = 0.005071 / RMS Temp. of East in deg. Celsius T4RMS = 0.004614 / RMS Temp. of West in deg. Celsius T5RMS = 0.003557 / RMS Temp. of Top in deg. Celsius T6RMS = 0.002294 / RMS Temp. of Bottom in deg. Celsius T7RMS = 0.004579 / RMS Temp. of CCD skin in deg. Celsius T8RMS = 0.002421 / RMS Temp. of CCD house in deg. Celsius T1MIN = 27.999001 / min. Temp. of North in deg. Celsius T2MIN = 27.997999 / min. Temp. of South in deg. Celsius T3MIN = 27.999001 / min. Temp. of East in deg. Celsius T4MIN = 27.999001 / min. Temp. of West in deg. Celsius T5MIN = 27.990999 / min. Temp. of Top in deg. Celsius T6MIN = 27.975000 / min. Temp. of Bottom in deg. Celsius T7MIN = 34.993999 / min. Temp. of CCD skin in deg. Celsius T8MIN = 28.682999 / min. Temp. of CCD house in deg. Celsius T1MAX = 28.007000 / max. Temp. of North in deg. Celsius T2MAX = 28.013000 / max. Temp. of South in deg. Celsius T3MAX = 28.013000 / max. Temp. of East in deg. Celsius T4MAX = 28.012001 / max. Temp. of West in deg. Celsius T5MAX = 28.000000 / max. Temp. of Top in deg. Celsius T6MAX = 27.982000 / max. Temp. of Bottom in deg. Celsius T7MAX = 35.009998 / max. Temp. of CCD skin in deg. Celsius T8MAX = 28.691000 / max. Temp. of CCD house in deg. Celsius T9 = 59.990299 / Mean Temp. of Iodine_Cell in deg. Celsius T10 = 29.037249 / Mean Temp. of CCD Air in deg. Celsius T11 = 28.184250 / Mean Temp. of ifm_Top in deg. Celsius T12 = 27.906498 / Mean Temp. of Center in deg. Celsius T13 = 28.038599 / Mean Temp. of Grating in deg. Celsius T14 = 27.597099 / Mean Temp. of CCD_area in deg. Celsius T15 = 27.959249 / Mean Temp. of Input in deg. Celsius T16 = 20.434649 / Mean Temp. of Ambient in deg. Celsius T9RMS = 0.018799 / RMS Temp. of Iodine_Cell in deg. Celsius T10RMS = 0.018412 / RMS Temp. of CCD Air in deg. Celsius T11RMS = 0.015033 / RMS Temp. of ifm_Top in deg. Celsius T12RMS = 0.004353 / RMS Temp. of Center in deg. Celsius T13RMS = 0.004954 / RMS Temp. of Grating in deg. Celsius T14RMS = 0.004700 / RMS Temp. of CCD_area in deg. Celsius T15RMS = 0.018528 / RMS Temp. of Input in deg. Celsius T16RMS = 0.001558 / RMS Temp. of Ambient in deg. Celsius T9MIN = 59.951000 / min. Temp. of Iodine_Cell in deg. Celsius T10MIN = 29.004000 / min. Temp. of CCD Air in deg. Celsius T11MIN = 28.151999 / min. Temp. of ifm_Top in deg. Celsius T12MIN = 27.898998 / min. Temp. of Center in deg. Celsius T13MIN = 28.028000 / min. Temp. of Grating in deg. Celsius T14MIN = 27.587000 / min. Temp. of CCD_area in deg. Celsius T15MIN = 27.925999 / min. Temp. of Input in deg. Celsius T16MIN = 20.431999 / min. Temp. of Ambient in deg. Celsius T9MAX = 60.000999 / max. Temp. of Iodine_Cell in deg. Celsius T10MAX = 29.056000 / max. Temp. of CCD Air in deg. Celsius T11MAX = 28.192999 / max. Temp. of ifm_Top in deg. Celsius T12MAX = 27.910000 / max. Temp. of Center in deg. Celsius T13MAX = 28.042000 / max. Temp. of Grating in deg. Celsius T14MAX = 27.599998 / max. Temp. of CCD_area in deg. Celsius T15MAX = 27.970999 / max. Temp. of Input in deg. Celsius T16MAX = 20.436998 / max. Temp. of Ambient in deg. Celsius EXTVER = 1 / Number assigned to the FITS extension. BZERO = 0.00000 / Data is unsigned short integers O_BZERO = 32768 / Original Data is Unsigned Integer VERSION = '0.00 ' / Reduction Software version number E_HVERS = 1.00000 / Header keyword version number E_SPMODE= 'marvels ' / Header keyword version number E_ORIENT= 0 / Reorientation flag for extraction E_XLO = 0 / Lowest X index to extract (0 base) E_YLO = 25 / Lowest Y index to extract (0 base) E_XHI = 4095 / Highest X index to extract (0 base) E_YHI = 4095 / Highest Y index to extract (0 base) E_GAIN = 1.46000 / Gain (electrons/ADU) E_READN = 4.58000 / Read noise (electrons) E_BACKG = 1.46000 / Total background dark and sky (electrons) E_TIME = 2455282.01665 / Exposure time (seconds) E_SPCSTR= 'S120 ' / Spectrum Number in String Form, starting at S00 E_SPECNO= 120 /Spectrum Number in numeric Form HISTORY Bias Subtracted: @ Wed Apr 14 05:50:21 2010 HISTORY Scatter Light Corrected: @ Wed Apr 14 05:50:21 2010 HISTORY Flat Fielded: @ Wed Apr 14 05:50:21 2010 HISTORY Trimmed Spectrum: 120 @ Wed Apr 14 06:13:46 2010 HISTORY Slant corrected (v2) Spectrum: 120 @ Wed Apr 14 06:13:46 2010 HISTORY Trace Corrected Spectrum: 120 @ Wed Apr 14 06:13:46 2010 HISTORY Illum. Corrected Spectrum: 120 @ Wed Apr 14 06:13:49 2010 HISTORY Distortion corrected spectrum: 120 @ Wed Apr 14 06:13:53 2010 HISTORY Low pass filtered spectrum: 120 @ Wed Apr 14 06:13:53 2010 EXTNAME = 'PHASE ' / END
XTENSION= 'IMAGE ' /Image Extension created by MWRFITS v1.2 SIMPLE = T / Written by IDL: Wed Apr 14 06:13:58 2010 BITPIX = -32 / Number of bits per data pixel NAXIS = 1 / Number of data axes NAXIS1 = 4096 / DATE = '2010-04-14' / Creation UTC (CCCC-MM-DD) date of FITS header PCOUNT = 0 / GCOUNT = 1 / COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H EXTNAME = 'VISIB ' / END
XTENSION= 'IMAGE ' /Image Extension created by MWRFITS v1.2 SIMPLE = T / Written by IDL: Wed Apr 14 06:13:58 2010 BITPIX = -32 / Number of bits per data pixel NAXIS = 1 / Number of data axes NAXIS1 = 4096 / DATE = '2010-04-14' / Creation UTC (CCCC-MM-DD) date of FITS header PCOUNT = 0 / GCOUNT = 1 / COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H EXTNAME = 'PHASEERR' / END
XTENSION= 'IMAGE ' /Image Extension created by MWRFITS v1.2 SIMPLE = T / Written by IDL: Wed Apr 14 06:13:58 2010 BITPIX = -32 / Number of bits per data pixel NAXIS = 1 / Number of data axes NAXIS1 = 4096 / DATE = '2010-04-14' / Creation UTC (CCCC-MM-DD) date of FITS header PCOUNT = 0 / GCOUNT = 1 / COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H EXTNAME = 'VISIBERR' / END
XTENSION= 'IMAGE ' /Image Extension created by MWRFITS v1.2 SIMPLE = T / Written by IDL: Wed Apr 14 06:13:58 2010 BITPIX = -32 / Number of bits per data pixel NAXIS = 1 / Number of data axes NAXIS1 = 4096 / DATE = '2010-04-14' / Creation UTC (CCCC-MM-DD) date of FITS header PCOUNT = 0 / GCOUNT = 1 / COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H EXTNAME = 'FRNGFREQ' / END
XTENSION= 'IMAGE ' /Image Extension created by MWRFITS v1.2 SIMPLE = T / Written by IDL: Wed Apr 14 06:13:58 2010 BITPIX = -32 / Number of bits per data pixel NAXIS = 1 / Number of data axes NAXIS1 = 4096 / DATE = '2010-04-14' / Creation UTC (CCCC-MM-DD) date of FITS header PCOUNT = 0 / GCOUNT = 1 / COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H EXTNAME = 'FRNGFREQERR' / END
XTENSION= 'IMAGE ' /Image Extension created by MWRFITS v1.2 SIMPLE = T / Written by IDL: Wed Apr 14 06:13:58 2010 BITPIX = -32 / Number of bits per data pixel NAXIS = 1 / Number of data axes NAXIS1 = 4096 / DATE = '2010-04-14' / Creation UTC (CCCC-MM-DD) date of FITS header PCOUNT = 0 / GCOUNT = 1 / COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H EXTNAME = 'FLUX ' / END
XTENSION= 'IMAGE ' /Image Extension created by MWRFITS v1.2 SIMPLE = T / Written by IDL: Wed Apr 14 06:13:58 2010 BITPIX = -32 / Number of bits per data pixel NAXIS = 1 / Number of data axes NAXIS1 = 4096 / DATE = '2010-04-14' / Creation UTC (CCCC-MM-DD) date of FITS header PCOUNT = 0 / GCOUNT = 1 / COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H EXTNAME = 'OFFSET ' / END
XTENSION= 'IMAGE ' /Image Extension created by MWRFITS v1.2 SIMPLE = T / Written by IDL: Wed Apr 14 06:13:58 2010 BITPIX = -32 / Number of bits per data pixel NAXIS = 1 / Number of data axes NAXIS1 = 4096 / DATE = '2010-04-14' / Creation UTC (CCCC-MM-DD) date of FITS header PCOUNT = 0 / GCOUNT = 1 / COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H EXTNAME = 'OFFSETERR' / END
XTENSION= 'BINTABLE' /Binary table written by MWRFITS v1.2 BITPIX = 8 /Required value NAXIS = 2 /Required value NAXIS1 = 324 /Number of bytes per row NAXIS2 = 1 /Number of rows PCOUNT = 0 /Normally 0 (no varying arrays) GCOUNT = 1 /Required value TFIELDS = 20 /Number of columns in table COMMENT COMMENT *** End of mandatory fields *** COMMENT COMMENT COMMENT *** Column names *** COMMENT TTYPE1 = 'NAME ' / TTYPE2 = 'TIME ' / TTYPE3 = 'CENTROID ' / TTYPE4 = 'NCOL ' / TTYPE5 = 'RANGE ' / TTYPE6 = 'COORDS ' / TTYPE7 = 'VMAG ' / TTYPE8 = 'SPECNO ' / TTYPE9 = 'DISPTRIM ' / TTYPE10 = 'TRIMSEC ' / TTYPE11 = 'NOTE ' / TTYPE12 = 'CALLCOMMAND ' / TTYPE13 = 'RAWNAME ' / TTYPE14 = 'FILETAKE ' / TTYPE15 = 'WEIGHTFILE ' / TTYPE16 = 'LEFTMARGIN ' / TTYPE17 = 'RIGHTMARGIN ' / TTYPE18 = 'PIXPERCHAN ' / TTYPE19 = 'EXPTIME ' / TTYPE20 = 'WMEANVISIB ' / COMMENT COMMENT *** Column formats *** COMMENT TFORM1 = '16A ' / TFORM2 = '20A ' / TFORM3 = '20A ' / TFORM4 = 'J ' / TFORM5 = '2D ' / TFORM6 = '2E ' / TFORM7 = 'E ' / TFORM8 = 'I ' / TFORM9 = '2E ' / TFORM10 = '2E ' / TFORM11 = '4A ' / TFORM12 = '19A ' / TFORM13 = '9A ' / TFORM14 = '28A ' / TFORM15 = '136A ' / TFORM16 = 'E ' / TFORM17 = 'E ' / TFORM18 = '2A ' / TFORM19 = 'D ' / TFORM20 = 'E ' / END