As there is no much to do while you have 24h/24h 100% cloud cover.... you go and test a few things... Astrometry, for example.
$ indiserver -v indi_simulator_ccd indi_simulator_telescope indi_simulator_guide indi_astrometry
Starts Kstars 3.0.0 (Osx), connect to indi server, then Align > Load&Slew (I select my h.jpg file) | Solver: remote
Options: -O --no-plots --no-verify --resort --downsample 2 -3 2.54167 -4 59.2583 -5 30
While trying to solve an image which I know is solvable, I get the following:
The interesting thing is that the image I used is a jpeg, and it is not corrupted.
If I use the ccdsolver.fits from the /tmp folder then yes it is corrupted.
$ cp /tmp/ccdsolver.fits .
$ jpegtopnm ccdsolver.fits > ccdsolver.ppm
jpegtopnm: WRITING PPM FILE
Corrupt JPEG data: premature end of data segment
Invalid JPEG file structure: two SOF markers
# dpkg -l | grep astrometry
ii astrometry.net 0.73+dfsg-1 armhf Astrometry plate solver
ii libastrometry0:armhf 0.73+dfsg-1 armhf Astrometry plate solver (shared lib)
ii libnova-0.16-0:armhf 0.16-2 armhf celestial mechanics, astrometry and astrodynamics library
ii python-astrometry 0.73+dfsg-1 armhf Astrometry plate solver (Python package)