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hello, i'm trying to use disptrans to transform an SDSS spectrum from vaccum to air wavelength but i get onedspec> disptrans sloanstar1 sloanstar1air angstroms air=vac2air
Warning: Image header parameter not found (EXTVER)I read in another forum here that this message can be hiding another error, then i tried adding the keyworkonedspec> hedit sloanstar1.fits EXTVER 1. add=yes
add sloanstar1.fits,EXTVER = 1.
update sloanstar1.fits ? (yes):
sloanstar1.fits updatedBut i keep getting the EXTVER not found message. any idea how can i get to the source of the problem? i'm putting below the image header.thx a lot
paulasloanstar1.fits[3834,4][real]:
No bad pixels, min=0., max=0. (old)
Line storage mode, physdim [3834,4], length of user area 9963 s.u.
Created Mon 15:33:12 08-May-2006, Last modified Mon 15:33:16 08-May-2006
Pixel file "sloanstar1.fits" [ok]
EXTEND = T / File may contain extensions
ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator
DATE = '2006-05-08T18:24:41' / Date FITS file was generated
IRAF-TLM= '15:33:16 (08/05/2006)' / Time of last modification
TAI = 4477370385.46 / 1st row - Number of seconds since Nov 17 1858
RA = 39.823125 / 1st row - Right ascension of telescope boresigh
DEC = 0.036658 / 1st row - Declination of telescope boresight (d
EQUINOX = 2000.00 /
RADECSYS= 'FK5 ' /
AZ = 329.972577785 / 1st row - Azimuth (encoder) of tele (0=N?) (de
ALT = 53.0977644093 / 1st row - Altitude (encoder) of tele (de
AIRMASS = 1.23933216438 /
FOCUS = -999999999999.999999 / 1st row - Focus piston (microns?)
DATE-OBS= '2000-10-04' / 1st row - TAI date
TAIHMS = '09:38:13.99' / 1st row - TAI time (HH:MM:SS.SS) (TAI-UT = appr
TIMESYS = 'tai ' / TAI, not UTC
TAI-BEG = 4477368127.00 / Exposure Start Time
TAI-END = 4477372240.00 / Exposure End Time
MJD = 51821 / MJD of observation
MJDLIST = '51821 ' /
VERSION = 'v3_18_4_1' / version of IOP
CAMVER = 'SPEC2 v4_5' / Camera code version
OBSERVER= 'snedden '
OBSCOMM = 'science '
TELESCOP= 'SDSS 2.5-M' / Sloan Digital Sky Survey
NEXP = 16 / Number of exposures in this file
EXPID00 = 'b1-51821-00006914-00006919-00006920' / ID string for exposure 0
EXPID01 = 'b1-51821-00006915-00006919-00006920' / ID string for exposure 1
EXPID02 = 'b1-51821-00006916-00006919-00006920' / ID string for exposure 2
EXPID03 = 'b1-51821-00006917-00006919-00006920' / ID string for exposure 3
EXPID04 = 'b2-51821-00006914-00006919-00006920' / ID string for exposure 4
EXPID05 = 'b2-51821-00006915-00006919-00006920' / ID string for exposure 5
EXPID06 = 'b2-51821-00006916-00006919-00006920' / ID string for exposure 6
EXPID07 = 'b2-51821-00006917-00006919-00006920' / ID string for exposure 7
EXPID08 = 'r1-51821-00006914-00006919-00006920' / ID string for exposure 8
EXPID09 = 'r1-51821-00006915-00006919-00006920' / ID string for exposure 9
EXPID10 = 'r1-51821-00006916-00006919-00006920' / ID string for exposure 10
EXPID11 = 'r1-51821-00006917-00006919-00006920' / ID string for exposure 11
EXPID12 = 'r2-51821-00006914-00006919-00006920' / ID string for exposure 12
EXPID13 = 'r2-51821-00006915-00006919-00006920' / ID string for exposure 13
EXPID14 = 'r2-51821-00006916-00006919-00006920' / ID string for exposure 14
EXPID15 = 'r2-51821-00006917-00006919-00006920' / ID string for exposure 15
EXPT_B1 = 3600.00 / b1 camera exposure time (seconds)
EXPT_B2 = 3600.00 / b2 camera exposure time (seconds)
EXPT_R1 = 3600.00 / r1 camera exposure time (seconds)
EXPT_R2 = 3600.00 / r2 camera exposure time (seconds)
EXPTIME = 3600.00 / Minimum of exposure times for all cameras
SPCOADD = 'Mon Sep 1 21:13:49 2003' / SPCOADD finished
FLAVOR = 'science ' / Flavor of this sequence (e.g., dome flat, etc.)
QUALITY = 'excellent' / night/image quality
RADEG = 3.98223500000000E+01 / Right Ascension. (degrees)
DECDEG = 3.68630600000000E-02 / Declination. (degrees)
PLATEID = 408 / Plate Id
TILEID = 197 / Tile Id
CARTID = 9 /Cartridge used in this plugging
MAPID = 5182102 / Map Id
NAME = '0408-51821-02' / Name of target; PlateId-MJD-Mapper ReRun
NGUIDE = 16.0000 / Number of guider frames during exposure
SEEING20= 1.53681446492 / 20% seeing during exposure (arcsec)
SEEING50= 1.64974968034 / 50% seeing during exposure (arcsec)
SEEING80= 1.76931809261 / 80% seeing during exposure (arcsec)
RMSOFF20= 0.138139495707 / 20% RMS offset of guide fibers (arcsec)
RMSOFF50= 0.249123691615 / 50% RMS offset of guide fibers (arcsec)
RMSOFF80= 0.406596337035 / 80% RMS offset of guide fibers (arcsec)
COLBIN = 1 / Binning factor perpendicular to the columns
ROWBIN = 1 / Binning factor perpendicular to the rows
PROGRAM = 'binning 1 1 ' / Identifying name for CCD program
SECFOCUS= -3.0000000000000E+02 / Secondary Mirror Position as reported by TCC
GUIDEIMG= '/data/spectro/guider/gimg0029.fits' / Last archived guider image
WTIME = 970652994.359 / weatherData(timeStamp)
AIRTEMP = 15.1452275505 / weatherData(airtemp)
DEWPOINT= 0.857760528923 / weatherData(dewpoint)
DEWDEP = 14.2874670216 / weatherData(dewpointDep)
DUSTA = 61120.2201540 / weatherData(dusta)
DUSTB = 537.268330712 / weatherData(dustb)
DUSTC = 68073.0110964 / weatherData(dustc)
DUSTD = 547.157499575 / weatherData(dustd)
GUSTD = 3.08000000000000E+02 / weatherData(gustd)
GUSTS = 9.74286287350 / weatherData(gusts)
HUMIDITY= 37.8974104345 / weatherData(humidity)
HUMIDOUT= 37.3601084138 / weatherData(humidout)
PRESSURE= 21.5400000000 / weatherData(pressure)
WINDD = 305.913491052 / weatherData(windd)
WINDS = 7.09375639001 / weatherData(winds)
TEMP01 = -93.7500000000 / CCD 01 Temperature
TEMP02 = -93.0941494094 / CCD 02 Temperature
TEMP03 = -92.3814214190 / CCD 03 Temperature
TEMP04 = -92.9700000000 / CCD 04 Temperature
VERSIDL = '5.4 ' / Version of IDL
VERSUTIL= 'v4_10_1 ' / Version of idlutils
VERSREAD= 'v4_10_2 ' / Version of idlspec2d for pre-processing raw dat
VERS2D = 'v4_10_2 ' / Version of idlspec2d for 2D reduction
VERSCOMB= 'v4_10_2 ' / Version of idlspec2d for combining multiple spe
VERSLOG = 'Unknown ' / Version of SPECLOG product
VERSFLAT= 'v1_5 ' / Version of SPECFLAT product
OPBC = 'opBC-51813.par' /
OPCONFIG= 'opConfig-50000.par' /
OPECALIB= 'opECalib-51577.par' /
XSIGMA = 0.918579339746 /
XSIGMIN = 0.820862000000 /
XSIGMAX = 1.04901003838 /
WSIGMA = 0.912259866150 /
WSIGMIN = 0.864332000000 /
WSIGMAX = 0.978789000000 /
PLUGFILE= 'plPlugMapM-0408-51821-02.par' /
LAMPLIST= 'lamphgcdne.dat' /
SKYLIST = 'skylines.dat' /
HELIO_RV= -12.0629158238 / Heliocentric correction (added to velocities)
VACUUM = T / Wavelengths are in vacuum
SFLATTEN= T / Superflat has been applied
PSFSKY = 3 / Order of PSF skysubtraction
SKYCHI2 = 0.968751791627 / Mean chi^2 of sky-subtraction
SCHI2MIN= 0.914645000000 /
SCHI2MAX= 1.03406000137 /
PREJECT = 0.200000 / Profile area rejection threshold
SPEC1_G = 34.1012 /(S/N)^2 for spec 1 at mag 20.20
SPEC1_R = 40.4345 /(S/N)^2 for spec 1 at mag 20.25
SPEC1_I = 35.5231 /(S/N)^2 for spec 1 at mag 19.90
SPEC2_G = 35.9007 /(S/N)^2 for spec 2 at mag 20.20
SPEC2_R = 35.8616 /(S/N)^2 for spec 2 at mag 20.25
SPEC2_I = 34.6549 /(S/N)^2 for spec 2 at mag 19.90
LOWREJ = 5 / Extraction: low rejection
HIGHREJ = 8 / Extraction: high rejection
SCATPOLY= 5 / Extraction: Order of scattered light polynomial
PROFTYPE= 3 / Extraction profile: 1=Gaussian
NFITPOLY= 1 / Extraction: Number of parameters in each profil
XCHI2 = 1.28392843009 / Extraction: Mean chi^2
XCHI2MIN= 1.17296 /
XCHI2MAX= 1.44850 /
ROFFSET1= 0.0333611 /Mean r-band mag difference (spectro - photo)
RSIGMA1 = 0.0585678 /Stddev of r-band mag difference (spectro - photo
GROFF1 = 0.0371760 /Mean (g-r) color difference (spectro - photo)
GRSIGMA1= 0.0490814 /Stddev of (g-r) color difference (spectro - phot
ROFFSET2= 0.0262775 /Mean r-band mag difference (spectro - photo)
RSIGMA2 = 0.109759 /Stddev of r-band mag difference (spectro - photo
GROFF2 = 0.0134305 /Mean (g-r) color difference (spectro - photo)
GRSIGMA2= 0.202783 /Stddev of (g-r) color difference (spectro - phot
NWORDER = 2 / Linear-log10 coefficients
WFITTYPE= 'LOG-LINEAR' / Linear-log10 dispersion
UNAME = 'sdssdp31.fnal.gov' /
SMEARUSE= T / Smear available?
TSOBJNAM= 'tsObj-0408-51821-02.fit' / Name of tsObj file used
SFD_USED= T / SFD dust maps used?
XYGRSIG1= 0.0239891 / Sigma of (g-r) offsets as a fcn of plate x/y
XYGRSIG2= 0.0281336 / Sigma of (g-r) offsets as a fcn of plate x/y
MPGRSIG1= 0.0365812 / Sigma of (g-r)_model - (g-r)_photo Spec 1
MPGRSIG2= 0.162737 / Sigma of (g-r)_model - (g-r)_photo Spec 2
MPGROFF1= 0.0280974 / Mean of (g-r)_model - (g-r)_photo of Spec 1
MPGROFF2= 0.0479176 / Mean of (g-r)_model - (g-r)_photo of Spec 2
FBADPIX = 0.0156177 / Fraction of bad pixels
FBADPIX1= 0.0123973 / Fraction of bad pixels on spectro-1
FBADPIX2= 0.0188380 / Fraction of bad pixels on spectro-2
WAT0_001= 'system=linear' /
WAT1_001= 'wtype=linear label=Wavelength units=angstroms units_display=Angstrom'
CRPIX1 = 1 / Starting pixel (1-indexed)
CTYPE1 = 'LINEAR ' /
DC-FLAG = 1 / Log-linear flag
PIXMIN = 0.00000000000000E+00 / Place Holder
PIXMAX = 2.04700000000000E+03 / Place Holder
ARRAY1 = 'SPECTRUM' / units of (10^-17 erg/s/cm^2/A
ARRAY2 = 'CONTINUUM-SUBTRACTED SPECTRUM' / units of 10^-17 erg/s/cm^2/A
ARRAY3 = 'ERROR ' / units of 10^-17 erg/s/cm^2/A
ARRAY4 = 'MASK ' / mask bit array
BUNIT = '1.0E-17 erg/cm/s/Ang' / units
SN_G = 6.36127000000000E+01 / Median S/N ration ig g'
MAG_G = 1.36001000000000E+01 / Synthetic magnitude in g'
SN_R = 6.94800000000000E+01 / Median S/N ratio in r'
MAG_R = 1.30471000000000E+01 / Synthetic magnitude in r'
SN_I = 6.44784000000000E+01 / Median S/N ratio in i'
MAG_I = 1.29136000000000E+01 / Synthetic magnitude in i'
SCI_SN = 6.42598000000000E+01 / Science signal to noise ratio
SMEAR_SN= 2.72350000000000E+01 / Smear signal to noise ratio
SM_LEG_0= 1.20654000000000E+00 / 1st legendre coeff. for smear correct
SM_LEG_1= 1.55136000000000E-01 / 2nd legendre coeff. for smear correct
SM_LEG_2= 2.95152000000000E-03 / 3rd legendre coeff. for smear correct
OBJID = ' 94 4 6 438 38' / run rerun camcol field objID
MAG = ' 23.6711 24.9325 17.2925 24.2481 16.1686' / fiber Mags
OBJTYPE = 'GALAXY ' / object Type
RAOBJ = 4.03976470000000E+01 / RA(deg) of object
DECOBJ = 1.24234180000000E+00 / DEC(deg) of object
XFOCAL = 1.25356660000000E+02 / X position in Focal plane
YFOCAL = 2.62687600000000E+02 / Y position in focal plane
PRIMTARG= 64 / primary Target Flag
SECTARGE= 0 / Secondary Target Flag
FIBERID = 528 / fiber ID
SPECID = 2 / spectrograph ID
NGOOD = 3827 / Number of Good Pixels
VERS_1D = 'v5_9_4 ' / Version of Spectro1d
BESTTEMP= 9 / Best cross-correlation template
COEFF0 = 3.58020000000000E+00 / Center wavelength (log10) of first pi
COEFF1 = 1.00000000000000E-04 / Log10 dispersion per pixel
CRVAL1 = 3.58020000000000E+00 / Iraf zero point
CD1_1 = 1.00000000000000E-04 / Iraf dispersion
1D_PDATE= '06/08/05:01:13:49' / 1D Processing/last Modification date
SPEC_CLN= 1 / Spectral Classn
VEL_DIS = -9.9990000000000E+03 / Velocity dispersion (km/s)
VEL_DISE= -9.9990000000000E+03 / Error on Velocity Dispersion (km/s)
Z = -1.0849700000000E-04 / Final redshift
Z_ERR = 6.14086000000000E-05 / Redshift error
Z_CONF = 1.00000000000000E+00 / Redshift confidence
Z_STATUS= 4 / Redshift Status
Z_WARNIN= 16 / Redshift Warning Flags
ECLASS = -2.0113600000000E-02 / galaxy classification parameter
ECOEFF1 = 9.95081000000000E-01 / 1st expansion coefficient
ECOEFF2 = 2.00174000000000E-02 / 2nd expansion coefficient
ECOEFF3 = 7.40217000000000E-02 / 3rd expansion coefficient
ECOEFF4 = 3.15033000000000E-02 / 4th expansion coefficient
ECOEFF5 = -5.4240400000000E-02 / 5th expansion coefficient
WCSDIM = 2
CTYPE2 = 'LINEAR '
CDELT1 = 1.00000000000000E-4
CDELT2 = 1.
CD2_2 = 1.
LTM1_1 = 1.
LTM2_2 = 1.
WAT1_002= 's '
EXTVER = 1.

hello there,i've actually found it. the sloan spectrum is not 1D, so i had to apply the task asdisptrans sloanstar1[0][*,1] sloanstar1air angstroms air=vac2airpaula