Affiliation
American Association of Variable Star Observers (AAVSO)
Sun, 08/07/2022 - 17:33
Hi All,
I had a problem with a previous set of images not plate solving (although a different set of the same star after the flip, on the same night, did plate solve). This is after several other sets from different nights of the same star did plate solve. I passed it off as a one-off problem. The error is that it timed out. This morning I submitted another set of images of the same star (V452 Vul) and again they did not plate solve for the same reason. Submitting an image from the set to Astronomy.net does get plate solved.
I would really like to do my time series on this star and have no idea why images are now not plate solving. Nothing about my setup or acquisition of the images has changed. Any help appreciated.
Darrell
LDRB
I always let PInPoint solve images before Maxim saves them to disk.
That way VPHOT never has to solve them, I don't have to wait for VPHOT to solve them, and more HQ computing power is available for members to do time series.
Try it, It's easy and works every time.
Ray
I have installed PinPoint. Thanks for the info. It is chewing on my images as I type this. I assume it is adding information to the FITS header in each image and then I can resubmit them when it is done, correct?
Darrell
Darrell:
VPhot can plate-solve images if necessary fits headers exist in your images. In fact, it uses pinpoint to do that.
Are your images running quickly in your local pinpoint? Should take about 2-3 secs per image? It is adding WCS headers if you have checked the proper box.
We do appreciate members using pinpoint locally since it speeds up the vphot queue. As stated, it is not required but appreciated.
If the images you submitted to VPhot did not contain the necessary fits headers or you do not have the correct settings in your vphot telescope setup, it explains why your images were not solving correctly? Alternatively, there may be something wrong with this set of images: faint, too few stars, poor alignment? You stated VPhot solved similar images previously. Nothing has changed in VPhot concerning plate-solving. If it times-out, pinpoint in vphot was having a hard time correlating the images with the 2 catalogs used by vphot.and gave up. What image scale do you have in your telescope setup in vphot? Did you bin the recent images differently than previous?
HTH.
Ken
It looks like it is taking longer than 2-3 seconds. I do have the "add WCS" box checked. It is making a .stars file for each of the files, so I assume it is solving.
As far as I know there is absolutely nothing different between the last 2 sets of images that didn't solve from the previous 3 or 4 that did.
Darrell