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 ERROR: MWCS: dimension mismatch (mw_open)
   
ongole.geeth
 07/18/2016 11:08AM (Read 624 times)  
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Im trying to use the task : splot under specred in imred in IRAF Revision 2.16.1 on IUE data downloaded from MAST archive of STScI.When I try to open those spectrums with splot it gives me a error saying

specred> splot lwr06483mxlo_vo.fits
ERROR: MWCS: dimension mismatch (mw_open)

Could i get help on this.

Thanks in advance,
Ongole




 
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fitz
 07/19/2016 11:44PM  
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Please post a header for the file or a link to the data so I can have a look. I suspect the header contains an inappropriate WCS (e.g. an RA/DEC WCS) or perhaps multiple WCS keywords that can be causing the problem. One thing you might try (on a copy of the file!) is to use the WCSRESET command (e.g. "cl> wcsreset lwr06483mxlo_vo.fits wcs=world") to reset the WCS, but this may destroy everything where a simple keyword edit might fix it as well.

I remember there being some problems with IUE data but don't remember the particulars, and don't have any experience with the MAST-distributed data. Be sure to read up on the particulars of IUE data reduction and analysis at https://archive.stsci.edu/iue/analysis.html for additional pointers.

 
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ongole.geeth
 07/20/2016 10:32AM  
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dcdr2dlwp03588mxlo.fits[640,1][real]:


SIMPLE = T / Fits standard
BITPIX = -32 / Bits per pixel
NAXIS = 2 / Number of axes
NAXIS1 = 640 / Axis length
NAXIS2 = 1 / Axis length
EXTEND = T / File may contain extensions
ORIGIN = 'NOAO-IRAF FITS Image Kernel July 2003' / FITS file originator
IRAF-TLM= '2015-07-30T18:41:30' / Time of last modification
TELESCOP= 'IUE ' / International Ultraviolet Explorer
DATE = '2015-07-30T18:41:30' / Date file was written
COMMENT *
COMMENT * CORE DATA ITEMS - COMMON SET
COMMENT *
CAMERA = 'LWP ' / Camera
IMAGE = 3588 / Sequential image number
DISPERSN= 'LOW ' / Spectrograph dispersion mode
APERTURE= 'LARGE ' / Aperture
DISPTYPE= 'LOW ' / Dispersion processing type
READMODE= 'FULL ' / Read mode
READGAIN= 'LOW ' / Read gain
EXPOGAIN= 'MAXIMUM ' / Exposure gain
UVC-VOLT= -5.0 / UVC voltage
ABNNOSTD= 'NO ' / Non-standard image acquisition
ABNBADSC= 'NO ' / LWP bad scans
ABNHTRWU= 'NO ' / LWR heater warmup
ABNREAD = 'NO ' / Read at other than 20 KB
ABNUVC = 'NO ' / Non-standard UVC voltage
ABNHISTR= 'NO ' / History replay
ABNOTHER= 'NO ' / Other abnormality
THDAREAD= 10.18 / THDA at read of image
EQUINOX = 1950.00 / Epoch of coordinates
STATION = 'GSFC ' / Observing station
ORBEPOCH= '13/06/84' / Orbital elements epoch
ORBSAXIS= 42163.0 / Semi-major axis in kilometers
ORBECCEN= 0.2085860 / Eccentricity
ORBINCLI= 29.117 / Inclination in degrees
ORBASCEN= 159.053 / Ascending node in degrees
ORBPERIG= 305.321 / Argument of perigee in degrees
ORBANOMA= 104.190 / Mean anomaly in degrees
POSANGLE= 135.09 / Pos angle of the large aperture (deg)
LAMP = 'NONE ' / Lamp
PGM-ID = 'QSGAB ' / Program identification
ABNMINFR= 'NO ' / Bad/missing minor frames
CC-PERCN= 84.6 / Cross-correlation % successful
CC-WINDW= 29 / Cross-correlation window size
CC-TEMPL= 23 / Cross-correlation template size
CC-MEDN = 0.481 / Median cross-correlation coefficient
CC-STDEV= 0.155 / St dev of cross-corr coefficients
SHFTMEAN= 0.169 / Mean shift between image and ITF
SHFTMAX = 1.546 / Maximum shift between image and ITF
ITF = 'LWP92R94A' / ITF identification
TILTCORR= 'NO ' / Tilt correction flag
MEANRAT = 1.001 / SI vs LI mean
STDEVRAT= 0.841 / SI vs LI standard deviation
COMMENT BY RA: EXP 1 APER L E=195,C=175,B=76
COMMENT BY RA: 0 MISSING MINOR FRAMES NOTED ON SCRIPT
COMMENT BY RA: 0 BAD SCAN STARTS NOTED ON SCRIPT
COMMENT BY RA: EXP 1 TRACKED ON FES
COMMENT BY RA: S PREP USED
COMMENT BY RA: OFFSET 1 FROM: SAO 107807
COMMENT BY RA: OFFSET 1 COORDINATES: 22 15 37.4 +13 41 59
COMMENT BY RA: OFFSET 1 MAGNITUDE: 7.000
COMMENT BY RA: REF.PT. USED FOR EXP 1: ( -16, -208)
COMMENT *
COMMENT * CORE DATA ITEMS - LARGE APERTURE SET
COMMENT *
LDATEOBS= '15/06/84' / Observing date
LTIMEOBS= '06:19:51' / Observing time
LJD-OBS = 2445866.76378 / Julian Date start of obs.
LEXPTRMD= 'NO-TRAIL' / Trail mode
LEXPMULT= 'NO ' / Multiple exposure mode
LEXPSEGM= 'NO ' / Segmented exposure code
LEXPTIME= 17999.748 / Integration time in seconds
LTHDASTR= 9.50 / THDA at start of exposure
LTHDAEND= 10.18 / THDA at end of exposure
LRA = 333.6883 / Homogeneous R.A. in degrees
LDEC = 13.9908 / Homogeneous Dec. in degrees
LLAPSTAT= 'OPEN ' / Large aperture status
LFES2MD = 'BO ' / FES(2) mode
LTARGET = 'MKN 304 ' / Object as given by Guest Observer
LTARGRA = 333.6908 / R.A. in degrees (given by GO)
LTARGDEC= 13.9889 / Dec. in degrees (given by GO)
LOBJECT = 'MRK 304' / Homogeneous Object ID
LIUECLAS= 84 / Object class
LFOCUS = -0.31 / Focus
LFPM = 0.08 / Flux particle monitor
LGSTAR2X= -1089 / X coordinate of guide star in FES 2
LGSTAR2Y= -175 / Y coordinate of guide star in FES 2
LGSTAR2C= 128 / Guide star counts in FES 2
LGSTAR2M= 'FO ' / Guide star mode FES2
LJD-MID = 2445866.86795 / Julian Date middle of obs.
LHELCORR= 0.00124 / Heliocentric corr to midpoint (days)
LDATABKG= 67 / Estimated mean background level (DNs)
LDATACNT= 154 / Estimated maximum continuum level (DNs)
LCNTRAPR= 51.0 / Predicted center line of spectrum
LXTRMODE= 'POINT ' / Extraction mode
LXTRPROF= 'EMPIRICAL' / Profile used
LXTRASYM= 'NO ' / Asymmetrical profile in extraction
LXTRCNTR= 50.8 / Center line of extracted spectrum
LFLUXAVE= 46.2 / Average flux (FNs)
COMMENT *
COMMENT * THE IUE VICAR HEADER
COMMENT *
COMMENT IUE-VICAR HEADER START
1 1 768 768 1 2 011103588 1 C
5552* 2*IUESOC * * *18,000* * * * * * * * * * 2 C
LWP 3588, MRK 304, 300 MIN EXPO, LOW DISP, LG APERTURE 3 C
EXPOSED FOR FIRST 4.5 MIN AT REF PT(-9, -208) 4 C
5 C
6 C
OBSERVER: WU ID: QSGAB DAY 167 15 JUNE 84 7 C
8 C
9 C
84167112300* 9 * 218 *OPSPRC40*112301 READPREP 1 IMAGE 3588 * 10 C
043400 CAMINIT *112337 SCAN READLO SS 1 G3 47 * 11 C
043405 3587 17441 23269 1178 *112354 X 53 Y 71 G1 97 HT 106 * 12 C
044928 FESIMAGE 0 0 81 *112330 * 13 C
052141 S/C MANEUVERING *112353 * 14 C
052216 TLM,LWPROM * * 15 C
052804 SPREP 1 * * 16 C
054239 TLM,FES2ROM * * 17 C
055158 FESIMAGE 0 0 81 * * 18 C
060720 TLM,FES1ROM .125000E 01 * * 19 C
061305 FESIMAGE -9 -208 7 * * 20 C
061453 TARGET IN LWLA * * 21 C
061619 TLM,FES2ROM .200000E 02 * * 22 C
061859 GDE TRACK X -1082 Y -175* * 23 C
061957 EXPOBC 1 180 0 MAXG NOL * * 24 C
062539 GDE TRACK X -1088 Y -173* * 25 C
063914 MODTIME 1 300 0 * * 26 C
071325 TLM,SWPROM * * 27 C
071618 SPREP 3 * * 28 C
072908 TLM,FES2ROM * * 29 C
111959 FIN 1 T 17999 S 97 U 108 * * 30 C
112102 TLM,LWPROM * * 31 C
112200 MODE LWH * * 32 C
33 C
34 C
35 C
QSGAB*1*07*C.WU * 5* *O*MRK 304*0*0*1*084 36 C
2214458+135920* 0* *0*14.6*99.00* * * 999.99* * 37 C
38 C
39 C
40 C
41 C
42 C
43 C
44 C
45 C
46 C
47 C
48 C
49 C
50 C
000000000000000000000000000000000000000000000000000000000000000000 51 C
000000000000000000000000000000000000000000000000000000000000004040 51 C
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0614F3F9CD000000CF917B00C70D004DC80B334A52486F2C2B434B453520335168 76 C
2C004888F3060A0E6D6F00657074330D2D2B15292D1C311316141EA4ABAB000000 76 C
AD0400FF00043BADA9AD0065B3AB043916242C312911122B2B1A1E171B1F382A39 77 C
706F7C1C7A157B227B1200000000200A1F921E9A000000B8E10000DF2CDFF60A40 77 C
7C007C00720000007B7B7B003F6800884F4247AF5176848645C29A9876787D4100 78 C
00B9AB05C1F4568282000000818139323536383431323436352C2D404040404040 78 C
000005C1F15683810001007F803B3536343A353131363836343476777377327771 79 C
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64A13FE110190E8902DC0040404040404040404040404040404040404040404040 80 C
404040404040404040404040404040404040404040404040404040404040404040 80 C
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00000000000000000000000C0000005C0000001C00000000000000FF0000004040 81 C
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00000000000000FF00000000000000FF000000FF00000000000000000000004040 82 C
2445856.5 .0 42161.4 .208649 29.1185159.2299305.1724 95.998 83 C
167042005 517489-6913263563259 167052151 2215374+1341592974616 84 C
167060911 2214457+1359202975424 85 C
051800000031000000328893DF2CDFE1000004000002909E52B9AB05C1F4568282 86 C
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051C0000003100000032879DE02CDFE000000400000A809E520000D8C1F4A28342 87 C
AFDAD3444977C973C932C8314261400000000040404001030A0D0E404040404040 87 C
05210000003100000032889BDF2CDFE100000400000A909E52BB7005C1F4548282 88 C
000000818175C973C932C8215161400000000040404001011F0D0E404040404040 88 C
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000000818176777377327721416140000000004040400104070B0C404040404040 89 C
070F0000001E000000108893DF2CDFE100000400001A909E52BAAB05C1F1568381 90 C
000100808078C975C938C921416151000000004040400301040D0E404040404040 90 C
0710000000270000002E8897E02CDFE000000400001A809E520000D8C1F1A0BE41 91 C
ACDAD4816378C974C938C921417142000000004040400303180D0E404040404040 91 C
071500FFFFEC0000000F8890E02CDFE100000400001A909E52BC6D05C1F1548381 92 C
000100808076C974C938C921416151000000004040400301270D0E404040404040 92 C
0B1300FFFFEB000000418894DF2CDFE100002B000010809E52B9AB05C1F4568282 93 C
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0B180000001300000056889ADF2CE0E100002800001A809E320000D8C5F4A24841 94 C
AED9C1708C75C971C932C8314A61400000000040404001070B0D0E404040404040 94 C
0B1D00FFFFC40000002D8896DF2CDFE1000026000012909E32B9AB05C1F4548282 95 C
000000818174C871C832C7215161400000000040404001011C0D0E404040404040 95 C
404040404040404040404040404040404040404040404040404040404040404040 96 C
404040404040404040404040404040404040404040404040404040404040404040 96 C
404040404040404040404040404040404040404040404040404040404040404040 97 C
404040404040404040404040404040404040404040404040404040404040404040 97 C
404040404040404040404040404040404040404040404040404040404040404040 98 C
404040404040404040404040404040404040404040404040404040404040404040 98 C
404040404040404040404040404040404040404040404040404040404040404040 99 C
404040404040404040404040404040404040404040404040404040404040404040 99 C
404040404040404040404040404040404040404040404040404040404040404040100 C
404040404040404040404040404040404040404040404040404040404040404040100 C
*VBBLK* 14:52 JUN 18,'84 L
COMMENT IUE-VICAR HEADER END
HISTORY IUE-LOG STARTED 14-JAN-1995 21:53:07
HISTORY PROCESSING SYSTEM: NEWSIPS VERSION 2.4.1
HISTORY ULTRIX VERSION
HISTORY LWP03588
HISTORY PROCESSED AT GODDARD SPACE FLIGHT CENTER
HISTORY ****************************************************************
HISTORY ****************************************************************
HISTORY START RAW_SCREEN 14-JAN-1995 21:55:09
HISTORY 26 BRIGHT SPOTS DETECTED
HISTORY 0 MISSING MINOR FRAMES DETECTED
HISTORY LARGE APERTURE SPECTRUM WILL BE EXTRACTED AS
HISTORY POINT SOURCE
HISTORY LARGE APERTURE CONTINUUM DN LEVEL = 154
HISTORY SMALL APERTURE CONTINUUM DN LEVEL = 0
HISTORY BACKGROUND DN LEVEL = 67
HISTORY END RAW_SCREEN 14-JAN-1995 21:55:52
HISTORY ****************************************************************
HISTORY START TTDC 14-JAN-1995 21:55:56
HISTORY TEMPERATURE USED FOR CORRECTING DISPERSION CONSTANTS = 10.18
HISTORY DATE OF OBSERVATION USED FOR CORRECTING
HISTORY DISPERSION CONSTANTS = 15/ 6/84 06:19:51
HISTORY FIRST-ORDER FIT OVER TIME USED
HISTORY FIRST-ORDER FIT OVER TEMPERATURE USED
HISTORY ZERO-POINT CORRECTION = -0.78 ANGSTROMS
HISTORY SPATIAL CORRECTION = 0.02 PIXELS
HISTORY END TTDC 14-JAN-1995 21:55:59
HISTORY ****************************************************************
HISTORY START CROSS-CORR 14-JAN-1995 21:56:10
HISTORY WINDOW SIZE USED: 29 X 29 PIXELS
HISTORY TEMPLATE SIZE USED: 23 X 23 PIXELS
HISTORY ITF USED: LWP92R94A
HISTORY 84.7 PERCENT SUCCESSFUL CORRELATIONS (127 OUT OF 150)
HISTORY MEDIAN CORRELATION COEFFICIENT: 0.481
HISTORY STANDARD DEVIATION OF CORRELATION COEFFICIENT: 0.155
HISTORY MEAN SHIFT IN PIXELS: 0.169
HISTORY MAXIMUM SHIFT IN PIXELS: 1.546
HISTORY NUMBER OF SUCCESSFUL SHIFTS FILTERED AS UNRELIABLE IN
HISTORY POST-FILTER ROUTINE: 3
HISTORY END CROSS-CORR 14-JAN-1995 21:58:16
HISTORY ****************************************************************
HISTORY START PHOTOM 14-JAN-1995 21:59:08
HISTORY ITF USED: LWP92R94A
HISTORY MEAN TEMPERATURE OF ITF: 9.6 C
HISTORY ITF UVC=-5.0 KV; UVFLOOD WAVELENGTH = 2536 A; ITF SEC =-6.1 KV
HISTORY ITF CONSTRUCTION: RAW SPACE, FOURIER FILTERED; FEB94
HISTORY END PHOTOM 14-JAN-1995 22:00:58
HISTORY ****************************************************************
HISTORY START GEOM 14-JAN-1995 22:01:25
HISTORY WAVELENGTH LINEARIZATION APPLIED USING CHEBYSHEV COEFFICIENTS:
HISTORY C(0) = 319.898
HISTORY C(1) = 318.746
HISTORY C(2) = 0.60244
HISTORY C(3) = 0.75394
HISTORY WAVELENGTH ZEROPOINT AND SPATIAL SHIFT APPLIED:
HISTORY ZERO-POINT SHIFT = -39.12 ANGSTROMS
HISTORY SPATIAL SHIFT = 1.03 PIXELS
HISTORY FINAL TIME/TEMP CORRECTED DISPERSION CONSTANTS USED:
HISTORY 1750.00 ANGSTROMS, 2.6626 ANGSTROMS/PIXEL
HISTORY PREDICTED CENTER LINE OF LARGE APERTURE = LINE 51.0
HISTORY PREDICTED CENTER LINE OF SMALL APERTURE = LINE 24.8
HISTORY END GEOM 14-JAN-1995 22:07:44
HISTORY ****************************************************************
HISTORY START SWET 14-JAN-1995 22:08:15
HISTORY NOISE MODEL USED: LWP VERSION 1.0
HISTORY
HISTORY *********************LARGE APERTURE DATA***********************
HISTORY
HISTORY PREDICTED SPECTRUM CENTER AT LINE 51, CENTROID FOUND AT
HISTORY LINE 51, PEAK AT LINE 51, AVERAGE PEAK FN = 46.2
HISTORY CROSS-DISPERSION PROFILES BINNED WITH A BLOCKSIZE OF 2 PIXELS,
HISTORY FOR A TOTAL OF 301 BLOCKS, OF WHICH 160 ARE REJECTED
HISTORY FIT PROFILE WITH 9 NODES AND 3.50 SIGMA REJECTION
HISTORY PROFILE CENTROID AT LINE 50.8
HISTORY EXTRACT FLUX FROM LINES 45 THROUGH 57
HISTORY REJECT PIXELS DEVIATING BY 6.0 SIGMA
HISTORY OUT OF 8320 PIXELS 4 REJECTED AS COSMIC RAY HITS,
HISTORY 110 FLAGGED AS BAD
HISTORY ABSOLUTE FLUX CALIBRATION LWP VERSION 1.0 APPLIED USING:
HISTORY MODE = LARGE APERTURE POINT SOURCE
HISTORY CALIBRATION EPOCH = 1985.00
HISTORY CAMERA RISE TIME = 0.123 SECONDS
HISTORY EFFECTIVE EXPOSURE TIME = 17999.748 SECONDS
HISTORY TEMPERATURE-DEPENDENT SENSITIVITY CORRECTION APPLIED USING:
HISTORY THDA OF IMAGE = 10.18
HISTORY REFERENCE THDA = 9.50
HISTORY TEMPERATURE COEFFICIENT = -0.0019
HISTORY TEMPERATURE CORRECTION FACTOR = 1.001
HISTORY SENSITIVITY DEGRADATION CORRECTION LWP VERSION 1.0 APPLIED USING:
HISTORY MODE = LARGE APERTURE POINT SOURCE
HISTORY CALIBRATION EPOCH = 1985.00
HISTORY OBSERVATION DATE = 1984.458
HISTORY END SWET 14-JAN-1995 22:08:34
HISTORY ****************************************************************
HISTORY START FITSCOPY 14-JAN-1995 22:08:43
WCSDIM = 2
CTYPE1 = 'LINEAR '
CTYPE2 = 'LINEAR '
CD1_1 = 2.48847475675776
CD2_2 = 1.
LTM1_1 = 1.
LTM2_2 = 1.
WAT0_001= 'system=equispec'
WAT1_001= 'wtype=linear label=Wavelength units=Angstroms'
WAT2_001= 'wtype=linear'
DEREDDEN= 'Jul 30 14:41 E(B-V)=0.0982 A(V)=0.491 R=5.'
DOPCOR01= ' 0.07 all'
APNUM1 = '1 1 0.00 0.00'
DC-FLAG = 0
CRVAL1 = 1635.51401869159
CRPIX1 = 1.
CDELT1 = 2.48847475675776
CDELT2 = 1.






























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ongole.geeth
 07/20/2016 10:42AM  
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I have gone through the STScI instructions for making it IRAF readable but couldn't succeed due to tomultispec task in iuetools package which was giving me a error.

 
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fitz
 07/22/2016 05:40PM  
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Posts: 3991
Using the ARTDATA package I was able to create a spectrum using your header that SPLOT could read even though the WCS looks a bit different. Is the original file a simple FITS file or an MEF where the spectrum is in an extension (you mentioned having to convert it with the tomultispec task, what was the error from that task?)? If it's an MEF, could you send me the file itself (email to fitz-at-iraf.net)?

Otherwise, is this the standard IRAF v2.16.1 release from NOAO or some other distribution like Ureka/AstroConda (which are custom v2.16 32-bit releases)? How did you get the IUETOOLS package? What OS is this?

 
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