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  #21  
Old 24-01-2006, 06:08 AM
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iceman (Mike)
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Thanks for your nice comments.

Quote:
What was the time of the 2 avi's? You mentioned you took others on that same morning of the 21st - did you get closer (or even on) the time of the GRS's transit? I'd like to see how close the GRS's longitude was to the expected 103°
Glen, I can't remember the exact time, as I've deleted the original avi after I extracted the frames, so the timestamp is gone.

But, I'm using the "Jupiter 2" program for GRS transit predictions, and it has the input set to 103°. I can say that it's been accurate so far so with it's predictions so if it's not 103, it's not far off. I haven't been imaging while the GRS crossed the meridian, so I can't confirm for sure. Hopefully in the next few days i'll get the opportunity.

Regarding the netpbm tools, I downloaded the individual netpbm tools I needed from here:
http://tutornet.ru/TEX/Soft/MiKTeX/UTIL/NETPBM/GNU/bin/

Bird's script is written in unix shell, so it won't run on DOS. You can either try and convert it to work as a batch file (using dos batch language), or, what I did was download and install "cygwin", which is a unix-like shell for DOS. So you can run unix commands in a DOS window. The shell script then worked without modification.

Well, I added a few things to it such as passing in the directory to process images from, and adding the path to the front of the netpbm exe's.

Thanks again.
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  #22  
Old 24-01-2006, 07:43 AM
bird (Anthony Wesley)
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Mike, another way to run those scripts is using the MinGW environment, it's slightly different to cygwin and it's what I use here.

www.mingw.org

Grab one of the self-installing MSYS exe's and you get a whole set of unix-like utils. The difference from cygwin is that no runtime DLL is needed, they are all native win32 binaries.

regards, Bird
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  #23  
Old 24-01-2006, 12:06 PM
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fringe_dweller
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Just Peachy Mike! geddit, geddit that second one is evn more peachy! go the dobs yay! amazing -
ps like your saturn's too
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  #24  
Old 24-01-2006, 12:43 PM
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astrogeek (Leon)
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Very nice shots Mike
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  #25  
Old 24-01-2006, 04:56 PM
rumples riot
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Wow, Mike and Bird, you want to talk english. I did not understand anything you said. Any chance you can explain it in English what I need to do to split my AVI's into three for RGB processing in registax. My operating system is XP pro. So if you can explain that would be good. Not all of us are Computer analysts. I know how they work, some of the software, but not a lot of the jargon. Thanks
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  #26  
Old 24-01-2006, 05:00 PM
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Robert_T
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Quote:
Originally Posted by iceman

It's a much smoother and more natural looking result. I'm definitely pleased with how it turned out, and it looks like this new processing method is the way to go.
Mike this is fantastic, easily one of the best Jupiter's I've seen and approaching that classic of Damian Peach's from last year - love the natural look
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  #27  
Old 24-01-2006, 05:16 PM
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davidpretorius
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Quote:
Originally Posted by rumples riot
Wow, Mike and Bird, you want to talk english. I did not understand anything you said. Any chance you can explain it in English what I need to do to split my AVI's into three for RGB processing in registax. My operating system is XP pro. So if you can explain that would be good. Not all of us are Computer analysts. I know how they work, some of the software, but not a lot of the jargon. Thanks
the progeam aviraw will also split your non raw and raw mode videos into r,g & b, you can then convert them to bmps for birds ppmcentre or feed them straight into registax.

a lot simpler i believe!
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  #28  
Old 24-01-2006, 05:38 PM
rumples riot
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Quote:
Originally Posted by Robert_T
Mike this is fantastic, easily one of the best Jupiter's I've seen and approaching that classic of Damian Peach's from last year - love the natural look

Err lets not get too carried away here. It is a great shot there is no doubt, but it is not as great as Damiens work nor to my eyes as good as birds. Praise is good, but lets be real here Robert.
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  #29  
Old 25-01-2006, 05:51 PM
rumples riot
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Mike I downloaded the tools but how do I use it to convert the avi? It just seems to be Dll file.
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  #30  
Old 25-01-2006, 09:09 PM
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Glenn Dawes
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Quote:
Originally Posted by davidpretorius
here u are glenn, not quite finished, 6 or more so to go, but the times are shown so you may be able to work it out from there.date 16th january
David,

These are great images and have shown exactly what I was looking for. Based on your images the GRS might have transited 3-5 mins later than the predicted 3.29pm EST I had expected (based on long 103°). That's really not much when you consider its angular size.

Thanks

Glenn
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  #31  
Old 25-01-2006, 09:11 PM
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davidpretorius
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my pleasure Glen
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  #32  
Old 25-01-2006, 09:25 PM
beren
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Superb work there Mike well done
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  #33  
Old 25-01-2006, 10:07 PM
Greg Bryant
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According to John McAnally of the Association of Lunar and Planetary Observers (ALPO), the value of the Great Red Spot's longitude (as of December 20, 2005) was 104 degrees.
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