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Starting from scratch with occultation processing
As you may have heard via other thread in IIS I recorded some data from the June 22/23 Pluto Occultation. I want to process this beyond where I currently have it as reduced, aligned frames.
I know nothing about Photometry/Astrometry and so in that regard are starting from scratch. So much so, that I don't understand what I want to use for occultations like this - is it photometry or astrometry? or something else?
I have the following installed which are probably of relevance:
- CCDSoft & TheSky
- Astrometrica (licensed)
I'm after some general pointers to get me in the right direction. I've been reading through some tuturial stuff, and help files, but am missing the first bit I think.
I've tried playing around in CCDSoft & Astrometrica. In CCDSoft it ran through "pre-analyze". The next most suitable thing seems to be variable star matching (stationary object, changing in brightness) but I just can't click start on this page, so think I'm in the wrong place.
I've used Astrometrica in the past for plate solving images, ending up with exact focal length, rotation, etc, and any minor planets identified. I'm not managing to get that to work with the pluto data, probably because I sub-framed the capture. I'm not sure if I even need to do this for the occultation.
It makes sense to me that I just need to tell one of the pieces of software to observe X,Y pixels (star being occulted) and for every file in the series record the brightness of that point. This would give me the desired outcome I think. But both CCDSoft and Astrometrica seem to need to plate solve the images. So again, I don't think I'm understanding what needs to be done.
Any help appreciated.
Thanks,
Roger.
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