Start /Mid /End selection for fits file & additional header info
Posted: Fri Oct 01, 2021 1:24 am
Hi All,
Can there be a selection for setting the time in the Fits file headers?
Doing astrometry or anything timed requires being able to set time of the exposure. An example would be mid frame for measuring purposes. I see that sharpcap uses the start time now.
Additionally can more info be included in the header such as observatory name, observer name Ect. as with other fits files.
Thanks
Terry
Minds Eye Observatory
SIMPLE = T / C# FITS: 09/28/2021 20:27:59
BITPIX = 16
NAXIS = 2 / Dimensionality
NAXIS1 = 1304
NAXIS2 = 976
BLKLEVEL= 0 /
GAIN = 300 /
EQUINOX = 2021.74316939891 /
OBJCTDEC= '+42 18 40.000' /
OBJCTRA = '21 10 38.000' /
DEC = 42.3113888888889 /
RA = 317.658333333333 /
DATE-OBS= '2021-09-29T00:27:56.2052853' / System Clock:Est. Frame Start
SWCREATE= 'SharpCap' / v3.2.6482.0, 32 bit
BAYOFFY = 1 /
BAYOFFX = 1 /
COLORTYP= 'BGGR ' / NOTE: Use GRBG on some software (eg PixInsight)
OBJECT = '2003QQ47 143649' /
CCD-TEMP= 31.2 /
YBINNING= 1 /
XBINNING= 1 /
YPIXSZ = 3.75 /
XPIXSZ = 3.75 /
EXPTIME = 3 /
BSCALE = 1 /
BZERO = 32768 /
EXTEND = T / Extensions are permitted
BAYERPAT= 'BGGR ' / NOTE: Use GRBG on some software (eg PixInsight)
INSTRUME= 'ZWO ASI224MC' /
Example from another source:
SIMPLE = T / file does conform to FITS standard
BITPIX = 16 / number of bits per data pixel
NAXIS = 2 / number of data axes
NAXIS1 = 1304 / length of data axis 1
NAXIS2 = 976 / length of data axis 2
BZERO = 32768 / offset data range to that of unsigned short
BSCALE = 1 / default scaling factor
ROWORDER= 'BOTTOM-UP' / Order of the rows in image array
EXPTIME = 0.5 / [s] Total Exposure Time
PIXSIZE1= 3 / [um] Pixel Size X, binned
PIXSIZE2= 3 / [um] Pixel Size Y, binned
XBINNING= 1 / Binning factor X
YBINNING= 1 / Binning factor Y
FRAME = 'Light ' / Frame Type
INSTRUME= 'ZWO ASI224MC(C8)-' / Instrument used for acquisition
EGAIN = 0.2636256218 / Electronic gain in e-/ADU
DATE-OBS= '2021-10-01T01:10:53.205' / UTC start date of observation
DATE = '2021-10-01T01:10:53' / Date data written
ORIGIN = 'Mind`s Eye Observatory' / Observatory name
SITELAT = 27.76444444 / Observatory latitude
SITELONG= -80.53416681 / Observatory longitude
OBSERVER= 'John T. Grage' / Observer name
TELESCOP= 'C8 Fastar F1.9' / Telescope used for acquisition
SWCREATE= 'CCDciel Version beta 0.9.75-2382-f758da97 Win32-i386'
OBJECT = 'Preview' / Observed object name
IMAGETYP= 'Light ' / Image Type
GAIN = 250 / Camera gain setting in manufacturer units
XPIXSZ = 3 / [um] Pixel Size X, binned
YPIXSZ = 3 / [um] Pixel Size Y, binned
XBAYROFF= 0 / X offset of Bayer array
YBAYROFF= 0 / Y offset of Bayer array
BAYERPAT= 'RGGB' / Bayer color pattern
FOCALLEN= 386.1 / [mm] Telescope focal length
CCD-TEMP= 33.6 / CCD temperature (Celsius)
FRAMEX = 0 / Frame start x
FRAMEY = 0 / Frame start y
FRAMEHGT= 976 / Frame height
FRAMEWDH= 1304 / Frame width
END
Can there be a selection for setting the time in the Fits file headers?
Doing astrometry or anything timed requires being able to set time of the exposure. An example would be mid frame for measuring purposes. I see that sharpcap uses the start time now.
Additionally can more info be included in the header such as observatory name, observer name Ect. as with other fits files.
Thanks
Terry
Minds Eye Observatory
SIMPLE = T / C# FITS: 09/28/2021 20:27:59
BITPIX = 16
NAXIS = 2 / Dimensionality
NAXIS1 = 1304
NAXIS2 = 976
BLKLEVEL= 0 /
GAIN = 300 /
EQUINOX = 2021.74316939891 /
OBJCTDEC= '+42 18 40.000' /
OBJCTRA = '21 10 38.000' /
DEC = 42.3113888888889 /
RA = 317.658333333333 /
DATE-OBS= '2021-09-29T00:27:56.2052853' / System Clock:Est. Frame Start
SWCREATE= 'SharpCap' / v3.2.6482.0, 32 bit
BAYOFFY = 1 /
BAYOFFX = 1 /
COLORTYP= 'BGGR ' / NOTE: Use GRBG on some software (eg PixInsight)
OBJECT = '2003QQ47 143649' /
CCD-TEMP= 31.2 /
YBINNING= 1 /
XBINNING= 1 /
YPIXSZ = 3.75 /
XPIXSZ = 3.75 /
EXPTIME = 3 /
BSCALE = 1 /
BZERO = 32768 /
EXTEND = T / Extensions are permitted
BAYERPAT= 'BGGR ' / NOTE: Use GRBG on some software (eg PixInsight)
INSTRUME= 'ZWO ASI224MC' /
Example from another source:
SIMPLE = T / file does conform to FITS standard
BITPIX = 16 / number of bits per data pixel
NAXIS = 2 / number of data axes
NAXIS1 = 1304 / length of data axis 1
NAXIS2 = 976 / length of data axis 2
BZERO = 32768 / offset data range to that of unsigned short
BSCALE = 1 / default scaling factor
ROWORDER= 'BOTTOM-UP' / Order of the rows in image array
EXPTIME = 0.5 / [s] Total Exposure Time
PIXSIZE1= 3 / [um] Pixel Size X, binned
PIXSIZE2= 3 / [um] Pixel Size Y, binned
XBINNING= 1 / Binning factor X
YBINNING= 1 / Binning factor Y
FRAME = 'Light ' / Frame Type
INSTRUME= 'ZWO ASI224MC(C8)-' / Instrument used for acquisition
EGAIN = 0.2636256218 / Electronic gain in e-/ADU
DATE-OBS= '2021-10-01T01:10:53.205' / UTC start date of observation
DATE = '2021-10-01T01:10:53' / Date data written
ORIGIN = 'Mind`s Eye Observatory' / Observatory name
SITELAT = 27.76444444 / Observatory latitude
SITELONG= -80.53416681 / Observatory longitude
OBSERVER= 'John T. Grage' / Observer name
TELESCOP= 'C8 Fastar F1.9' / Telescope used for acquisition
SWCREATE= 'CCDciel Version beta 0.9.75-2382-f758da97 Win32-i386'
OBJECT = 'Preview' / Observed object name
IMAGETYP= 'Light ' / Image Type
GAIN = 250 / Camera gain setting in manufacturer units
XPIXSZ = 3 / [um] Pixel Size X, binned
YPIXSZ = 3 / [um] Pixel Size Y, binned
XBAYROFF= 0 / X offset of Bayer array
YBAYROFF= 0 / Y offset of Bayer array
BAYERPAT= 'RGGB' / Bayer color pattern
FOCALLEN= 386.1 / [mm] Telescope focal length
CCD-TEMP= 33.6 / CCD temperature (Celsius)
FRAMEX = 0 / Frame start x
FRAMEY = 0 / Frame start y
FRAMEHGT= 976 / Frame height
FRAMEWDH= 1304 / Frame width
END