Jesse Goldbaum

In short I can use the current version. Thanks, In long my requests are somewhat simpler. For batch plate solving I'd like to see a FWHM keyword. If that's too much then an HFD keyword is fine as the conversion is simple (assuming a Gaussian profile). Don't need both. The keyword comment section would include the method used for the estimate (e.g. average, median, mode... ;) and the number of samples used (aka number of stars). If for some reason ASTAP can't calculate a value then write a bogus value...

Thanks for your prompt attention on this and my confusion regarding solve vs tilt. I think it should be fine. I'm on the way out for a few hours so wont have a chance to test as soon as I'd like. Thanks again,

I've added the unsolved version of the test image I'm using if that'll help. (I can't figure how to add more than one attachment/post). -Jesse

Sorry to be a pain but I'm still not seeing any HFD or FWHM in the FITS header after a solve (attached). I think all I'm really suggesting is to add either the HFD or FWHM keyword to the Batch solve images -> e.g. Option "Add Lim_MAGN, SQM, CENTALT, AIRMASS, FWHM". I guess I prefer FWHM since my software already checks for that though HFD is trivial to add. I'm agnostic about median vs mean as I'm comparing relative changes over time. That being said, if outliers are a regular thing throwing off...

You'll have to forgive my limited ASTAP skills if I'm missing something here. I ran a non-batch plate solve using 07.13 and didn't see an HFD keyword in the header (attached). That being said, I noticed after an Analyse that a Median FWHM was reported by ASTAP. Since MaxIm/PinPoint writes a FWHM keyword then that works better than HFD for me (I wouldn't have to edit my code :)

Thanks for getting back. Since there wasn't an explicit too-few-stars-message I figured I'd make sure. I'll try the F4 thing as well. I almost didn't bother to post but then I was wondering with the T CrB image if triangle was able to measure a TILT then why wasn't that value being written to the header. I also wanted to ask about HFD. It's convenient having the metadata in one place in the FITS the header but it's not like I can't read a spreadsheet as well. Thanks again, Jesse

Thanks for getting back. Since there wasn't an explicit too-few-stars-message I figured I'd make sure. I almost didn't bother to post but then I was wondering with the T CrB image if triangle was able to measure a TILT then why wasn't that value being written to the header. I also wanted to ask about HFD. It's convenient having the metadata in one place in the FITS the header but it's not like I can't read a spreadsheet as well. Thanks again, Jesse

HFD = is fine. I did a quick Google search and couldn't find any one else writing something similar. I occasionally use PinPoint and they write a FWHM after a plate solve. I often plot the FWHM (HFD) to see how it varies by itself over time or to see if it correlates with focus changes if that's enabled. Thanks,