Hi Rowland,
The file you provided loads normally. Maybe it was open in an other application? If so i should improve the message. Anyhow even while very noisy it solves with default settings:
- 14:41:57 Creating monochromatic x 2 binning image to solve.
- 14:41:59 338 stars selected and 256 tetrahedrons selected in the image. 319 database stars required for the square search field of 0.9°. Overlap set at 0% based on the number of tetrahedrons.
- 14:41:59 Using star database g17
- 14:41:59 91 of 99 tetrahedrons selected matching within 0.005 tolerance. Solution x:=-0.666729x+ -0.630009y+ 2660.298601, y:=-0.630210x+ 0.666495y+ 293.433587
- 14:41:59 Solution found: 09:55 34.2 +69d03 56 Solved in 2.9 sec. Offset was 0.000 deg. Used stars up to magnitude: 16.2
Since it is pretty large, set in ASTAP downsample to 2 and save settings. In downsample 1x it takes more time and is less reliable.
Attached with annotation.
ASTAP has a FITS thumbnail viewer. It is slow and doesn’t rescan automatically but that could be reviewed.
Cheers, Han
