IMP: Metadata missing in 8218

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zerolatitude
Posts: 156
Joined: Mon Mar 01, 2021 5:24 am

IMP: Metadata missing in 8218

#1

Post by zerolatitude »

Just downloaded 8218. The RA/DEC and focal length metadata seems missing from the FITS header? This is pretty important and urgent as apps like Siril and PI can no longer get metadata from image for PCC and/or platesolving.

Please add the focal length also as in Sharpcap settings.

Thanks

With v 8218
SIMPLE = T / C# FITS: 10/07/2021 20:07:25
BITPIX = 16
NAXIS = 2 / Dimensionality
NAXIS1 = 3008
NAXIS2 = 3008
XBAYROFF= 0 /
YBAYROFF= 0 /
FRAMETYP= 'Light ' /
SWCREATE= 'SharpCap v4.0.8218.0, 32 bit' /
DATE-OBS= '2021-10-07T14:35:24.8736250' / System Clock:Est. Frame Start
DATE-AVG= '2021-10-07T14:36:24.8736250' / System Clock:Est. Frame Mid Point
BAYOFFY = 0 /
FILTER = 'UHC ' /
GAIN = 102 /
OBJECT = 'M16 ' /
DATE-END= '2021-10-07T14:37:24.8736250' / System Clock:Est. Frame End
BAYOFFX = 0 /
COLORTYP= 'RGGB ' / Try GBRG if image upside down or R/B swapped.
BLKLEVEL= 15 /
CCD-TEMP= 10 / C
YBINNING= 1 /
XBINNING= 1 /
YPIXSZ = 3.76 / microns
XPIXSZ = 3.76 / microns
EXPTIME = 120 / seconds
ROWORDER= 'TOP-DOWN' /
BSCALE = 1 /
BZERO = 32768 /
EXTEND = T / Extensions are permitted
BAYERPAT= 'RGGB ' / Try GBRG if image upside down or R/B swapped.
INSTRUME= 'ZWO ASI533MC Pro' /
END


With previous version
SIMPLE = T / C# FITS: 09/30/2021 20:15:42
BITPIX = 16
NAXIS = 2 / Dimensionality
NAXIS1 = 3008
NAXIS2 = 3008
YBAYROFF= 0 /
FRAMETYP= 'Light ' /
SWCREATE= 'SharpCap v4.0.8185.0, 32 bit' /
DATE-OBS= '2021-09-30T14:43:42.7400495' / System Clock:Est. Frame Start
RA = 274.989958333333 /
OBJCTDEC= '-13 48 25.000' /
OBJCTRA = '18 19 57.000' /
XBAYROFF= 0 /
EQUINOX = 2021.74590163934 /
GAIN = 102 /
OBJECT = 'M16 ' /
DEC = -13.8070388888889 /
BAYOFFY = 0 /
BAYERPAT= 'RGGB ' / Try GBRG if image upside down or R/B swapped.
BLKLEVEL= 15 /
COLORTYP= 'RGGB ' / Try GBRG if image upside down or R/B swapped.
CCD-TEMP= 10 / C
YBINNING= 1 /
XBINNING= 1 /
YPIXSZ = 3.76 / microns
XPIXSZ = 3.76 / microns
EXPTIME = 120 / seconds
ROWORDER= 'TOP-DOWN' /
BSCALE = 1 /
BZERO = 32768 /
EXTEND = T / Extensions are permitted
BAYOFFX = 0 /
INSTRUME= 'ZWO ASI533MC Pro' /
END
zerolatitude
Posts: 156
Joined: Mon Mar 01, 2021 5:24 am

Re: IMP: Metadata missing in 8218

#2

Post by zerolatitude »

Just to add - after the update I have been getting consistent failure in plate solving. Could this be a reason?
procyon12
Posts: 255
Joined: Tue Jan 14, 2020 11:32 am

Re: IMP: Metadata missing in 8218

#3

Post by procyon12 »

Hi,

Missing object RA/DEC I cannot confirm (8218 32bit, w10, ASCOM-hub, QHY174GPS). They appear in FITS headers "RA"/"DEC" and "OBJCTRA"/"OBJCTDEC". At least "Test Platesolve" seems to work also. Focal length (as set in platesolve options) I haven't seen so far in any output.

Christian
zerolatitude
Posts: 156
Joined: Mon Mar 01, 2021 5:24 am

Re: IMP: Metadata missing in 8218

#4

Post by zerolatitude »

That's odd. I got them in the earlier version but not in 8218, as can be seen in the header copied above.

Any views from SC team? Is they something that could be switched off in the new version?

I also get the platesolve test working. When I try to solve the capture in ASTAP it failed. Took me some time to realise it was because RA and DEC were not there. When I input them manually it was fine.

The focal length is a new request.
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Menno555
Posts: 1057
Joined: Mon Apr 20, 2020 2:19 pm
Location: The Netherlands
Contact:

Re: IMP: Metadata missing in 8218

#5

Post by Menno555 »

HI

Here also I can not confirm missing RA/DEC in 8218. As far as I know there only was an option added in Settings > Saving to manually add TELESCOP and/or OBSERVER in the FITS header.
This from last night with 8218:

...........

RA = 342.162958333333 /
OBJCTDEC= '+39 59 33.000' /
OBJCTRA = '22 48 39.000' /
SWCREATE= 'SharpCap v4.0.8218.0, 64 bit' /
EQUINOX = 2021.76775956284 /
FILTER = 'Neodymium' /
GAIN = 90 /
OBJECT = 'UGC 12188' /
DEC = 39.9927361111111 /
FRAMETYP= 'Light ' /
...........
procyon12
Posts: 255
Joined: Tue Jan 14, 2020 11:32 am

Re: IMP: Metadata missing in 8218

#6

Post by procyon12 »

My header:
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admin
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Re: IMP: Metadata missing in 8218

#7

Post by admin »

Hi,

the RA/DEC/OBJCTRA/OBJCTDEC headers only show up in the FITS file if you have an ASCOM mount connected in SharpCap at the time that you take the image (so that SharpCap has something to ask for the celestial co-ordinates).

I think that is likely to be the cause of the headers apparently going missing - not having connected a mount. I certainly see them in the latest version with the mount connected.

cheers,

Robin
zerolatitude
Posts: 156
Joined: Mon Mar 01, 2021 5:24 am

Re: IMP: Metadata missing in 8218

#8

Post by zerolatitude »

Yes, that was it. The mount got disconnected sometime during the sequence.

Thanks very much.
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