The current user manual for the AO-X unit (version 1.3) mentions CCDOPS, which is discontinued. It also mentions the STXL cameras and not the...
Hi, I thought I heard a while ago that SBIG was coming out with an imx455-based camera. Is that true, and if so, when? I'm looking for a...
Colin, Thanks, that clarifies things. Looking more closely at the manual, with cover for the camera (first diagram above) is taller than the red...
Colin, I don't think that matters. Whether or not a filter wheel has a filter in it doesn't change the physical depth of the filter wheel. And I...
Per the STXL manual (revision 1.3, December 2012), the optical backfocus of the camera is 24.33 mm to the front of the camera (with no adapter)....
@Doug, I added a "Single Dark Frame". I have newer darks and regularly take them. I looked for two images using the same dark master that were...
I uploaded the dark and flat masters which were used by both frames. https://eccssw.com/AstroIssues/Noise/ If it makes any difference, the sensor...
Interesting. Must be different browsers since I could right click and download it. Regardless, I added a MIME type for fits to the server. When...
You have to right-click on the links and select "save link as" (or equivalent for your browser).
For the last year or so some of my images using the same bias, dark, and flat frames show significantly different noise levels, even when take one...
Colin, Thanks for your detailed answers. They make total sense. Last time I visited the observatory in NM (you have a good memory) I took a roof...
Colin, You may be on to something. There have been several days where temperature inside the observatory got to around 100 F. Would you please...
Is there anything that would cause an STXL-16200 camera cooler to turn off without being told to by software? This has been happening many (but...
Thanks Tim. I'll check that.
Colin, I just got a "Shutter Error" in CCDOps, so it's unlikely an SGP issue. I still have the CCDOps window open - does CCDOps have a log file...
So far have not been able to get it to fail with CCDOps, just SGP. Is there additional logging I should turn on in the driver? Does CCDOps use...
Colin, I'm pretty sure I already tried power cycling the camera, but I just did it. How would I use CCDops to check it out? I don't see any...
I recently replaced my STXL filter wheel that would stop moving with a newly purchased one (it works great!!). While it was off, I rotated the...
Thanks Doug. You only have two left. I just ordered one. My plan is to install it in a month when I'm at the observatory, then send the bad unit...
Doug, Colin, Is it possible the STXL-16200 is the cause of my filter wheel stopping? For example, the camera isn't supplying enough power to the...
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