Martin Akk
Martin Akk

Martin Akk

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Martin Akk
Martin Akk replied to the topic 'Solver not working under Ekos' in the forum. 7 years ago

OK thanks,

I thought the Ekos solver options would be used if no appropriate values are found in the Fits header.

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Martin Akk
Martin Akk created a new topic ' Solver not working under Ekos' in the forum. 7 years ago

Hi,

Since a month I've discovered KStars and the Ekos & Indi packages and I'm impressed with the functionality it brings to my Linux system for doing astronomy/astro imaging. Keep up the great work!

As the weather is currently cloudy at my place I was experimenting offline with the plate solving part of Ekos, but I haven't been succesful so far.
I've downloaded the data for offline solving and it works when I solve from the command line, but doesn't give any solutions when doing this from within Ekos.

When I point the telescope simulator close to M31, the solver options show the following options:

--no-verify --no-plots --no-fits2fits --resort --downsample 2 -O -L 160.837 -H 266.651 -u aw -3 10.9042 -4 40.9589 -5 10

Image size (4x2.5deg), RA, dec and range seem to be OK and when I try to do a "load and slew" on a DSLR image of M31 the log window shows the following logging:
2016-11-05T19:17:29 simplexy: found 2928 sources.
2016-11-05T19:17:26 Downsampling by 2...
2016-11-05T19:17:26 This looks like a multi-color image: processing the first image plane only.  (NAXIS=3)
2016-11-05T19:17:26 Extracting sources...
2016-11-05T19:17:24 Reading input file 1 of 1: "/home/marakk/Astro/Capture/M31/M31_5x90s.fit"...
2016-11-05T19:17:24 /usr/bin/solve-field --no-verify --no-plots --no-fits2fits --resort --downsample 2 -O -3 359 -4 180 -5 15 -W /tmp/solution.wcs /home/marakk/Astro/Capture/M31/M31_5x90s.fit
2016-11-05T19:17:24 Starting solver...
2016-11-05T19:17:24 Using solver options: --no-verify --no-plots --no-fits2fits --resort --downsample 2 -O -3 359 -4 180 -5 15
2016-11-05T19:17:24 FITS header: Cannot find FOCALLEN.
2016-11-05T19:17:24 FITS header: Cannot find OBJCTRA. Using current mount coordinates.

After waiting a few minutes it fails (no solution).
Passing the Ekos solver options on the command line to solve-field gives me a solution within a few seconds.
So the options and solver installation seem to be OK.

From the logging however it looks like the it uses the wrong solver options: they are not correctly passed from Ekos to the solver as it seems to use RA=359deg and dec=180deg.

Does anyone know if this is caused by the fact that I'm using the simulator, or by incorrect Ekos configuration, or is this a bug in Ekos?

Thanks in advance,
Martin

System:
Ubuntu Mate 16.04
KStars v2.7.0 + Ekos
Indi v1.3.0
astrometry.net v0.67 + astrometry-data-2mass* v1.1

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