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Saving calibrated or normalized ot registered files-> FITS Header RA/DEC and other informations has disappeared.  

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(@franck_chile)
White Dwarf Customer
Joined: 1 year ago
Posts: 12
October 23, 2020 17:07  

Hi,

I am pre-processing my images to study variable stars/asteroids light curves.

When I save my calibrated images or my normalized or registered image, the fits header is almost empty.

Is there a way to keep FITS header in each saved file please?

My image calibration FITS header:

SIMPLE = T / Java FITS: Fri Oct 23 10:19:59 CLST 2020
BITPIX = 16 / bits per data value
NAXIS = 2 / number of axes
NAXIS1 = 4008 / size of the n'th axis
NAXIS2 = 2672 / size of the n'th axis
EXTEND = T / Extensions are permitted
BSCALE = 1.0 / scaling to 16bit
BZERO = 32768.0 / offset data range to that of unsigned short
DATE = '2020-10-23T13:42:02' / creation date of calibrated-Light
DATE-OBS = '2020-10-22T00:25:44' / observation date of calibrated-Light
SOFTWARE = 'Astro Pixel Processor by Aries Productions' / software
VERSION = '1.083-beta1' / Astro Pixel Processor version
CALLIGHT = 'calibrated-Light' / calibrated light frame
INSTRUME = 'SBIG STL-11000 3 CCD Camera' / instrument name
CFAIMAGE = 'no ' / Color Filter Array pattern
EXPTIME = 45.0 / exposure time (s)
GAIN = 0.82 / gain or ISO depending on instrument
AD-PED = 1092.35200 / adaptive pedestal from data calibration
FILTNUM = 1 / data combined from 1 filter
FILT-1 = 'Luminance' / filter used
INPUTFMT = 'FITS ' / Format of file from which image was read 

 

My initial FITS header:

SIMPLE = T / file does conform to FITS standard
BITPIX = 16 / number of bits per data pixel
NAXIS = 2 / number of data axes
NAXIS1 = 4008 / length of data axis 1
NAXIS2 = 2672 / length of data axis 2
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
BZERO = 32768 / offset data range to that of unsigned short
BSCALE = 1 / default scaling factor
OBSERVER = 'Franck JOBARD' / SBIGFITSEXT The name of the observer
ORIGIN = 'Chile ' / Description of location
TELESCOP = 'RC 12.5" @f9' / SBIGFITSEXT The model Telescope
FOCALLEN = 2857. / SBIGFITSEXT Telescope focal length in mm
APTAREA = 316532. / SBIGFITSEXT Aperture area mm^2 less central obs
APTDIA = 317.5 / SBIGFITSEXT Aperture diameter in mm
SBUUID = '{aab6a6bf-9527-4a8d-8095-d541d58becc4}' / Photo UUID
EXPTIME = 45. / SBIGFITSEXT Total exposure time in seconds
SWCREATE = 'TheSkyX Version 10.5.0 Build 12439' / SBIGFITSEXT Name & version of s
COLORCCD = 0 / Non zero if image is from a Bayer color ccd
DISPINCR = 1 / Non zero to automatically display the image in
PICTTYPE = 1 / Image type as index 0= Unknown 1=Light, 2=Bias,
IMAGETYP = 'Light Frame' / SBIGFITSEXT Light, Dark, Bias or Flat
XORGSUBF = 0 / SBIGFITSEXT Subframe x upper-left pixel in bin
YORGSUBF = 0 / SBIGFITSEXT Subframe y upper-left pixel in bin
XBINNING = 1 / SBIGFITSEXT Binning factor in width
YBINNING = 1 / SBIGFITSEXT Binning factor in height
EXPSTATE = 294
EGAIN = 0.82 / SBIGFITSEXT Electronic gain in e- per ADU
CCD-TEMP = -14.8095167806398 / SBIGFITSEXT Temperature of the CCD
SET-TEMP = -15.0212248083951 / SBIGFITSEXT The cooler setpoint in degrees C
SITELAT = '-30 31 35.00' / SBIGFITSEXT Latitude of the imaging location
SITELONG = '+70 50 15.00' / SBIGFITSEXT Longitude of the imaging location
LST = '+21 45 58.89' / Local sidereal time
OBSGEO-B = -30.5263888888889 / Latitude of the observation in degrees, North +
OBSGEO-L = -70.8375 / Longitude of the observation in degrees, East +
OBSGEO-H = 1710. / Altitude of the observation in meters
BTP = 1 / Beyond the pole
CENTAZ = 121.078050913701 / SBIGFITSEXT Azimuth of the center of the image
CENTALT = 46.6772642411589 / SBIGFITSEXT Altitude of the center of the image
AIRMASS = 1.37455358607447 / Airmass of the telescope
TELEHA = '-03 31 01.08' / Telescope hour angle
MOUNT = 'Gemini-compatible mount' / The telescope mount
OBJCTRA = '01 16 03.505' / SBIGFITSEXT The right ascension of the center o
OBJCTDEC = '-42 31 54.46' / SBIGFITSEXT The declination of the center of th
OBJECT = 'Mouse click position' / SBIGFITSEXT The name of the object imaged
INSTRUME = 'SBIG STL-11000 3 CCD Camera' / SBIGFITSEXT The model camera used.
XPIXSZ = 9. / SBIGFITSEXT Pixel width in microns after binnin
YPIXSZ = 9. / SBIGFITSEXT Pixel height in microns after binni
PEDESTAL = -100 / SBIGFITSEXT Add this count to each pixel value
FILTER = 'Luminance' / SBIGFITSEXT The optical filter used to take ima
DATE-OBS = '2020-10-22T00:25:44.295' / SBIGFITSEXT UTC of start exp. in ISO 8601
LOCALTIM = '10/21/2020 09:25:44.289 PM DST' / Local time at exposure start
INPUTFMT = 'FITS ' / Format of file from which image was read


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(@vincent-mod)
Universe Admin
Joined: 3 years ago
Posts: 2653
October 24, 2020 11:40  

I will ask Mabula about this, thanks for the request!


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