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  #1  
Old 20-02-2016, 10:11 PM
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RickS (Rick)
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Satellite central

54 subs on NCG2170 and only 5 of them were clear of satellite trails. Most of them had at least half a dozen. Attached pic is the rejection map
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  #2  
Old 20-02-2016, 10:13 PM
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rustigsmed (Russell)
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Hahaha that is unlucky! Perhaps a different part of the sky is in order!
It resembles the rings of Saturn!
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Old 20-02-2016, 10:15 PM
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Great capture!!

What a problem to have.

Very interesting observation!!

Thanks,
Tim
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Old 20-02-2016, 10:36 PM
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The bulk of the trails are clustered around and parallel to dec -5 30.

The poor rejection algorithm just couldn't deal with the mass of overlapping trails. I managed to clean up the data using PixelMath. I drew lines that covered the trails with a value that rejects out easily (the maximum pixel value). It was a lot of work!

Cheers,
Rick.
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Old 20-02-2016, 10:36 PM
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strongmanmike (Michael)
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Quote:
Originally Posted by RickS View Post
54 subs on NCG2170 and only 5 of them were clear of satellite trails. Most of them had at least half a dozen. Attached pic is the rejection map
Geez how long were your subs.?? Using 10 - 15min subs I generally only have issues with satellites for the first hour or so after astronomical twilight and the last hour or so before...?

Cool composite though

Mike
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Old 20-02-2016, 10:38 PM
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RickS (Rick)
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Originally Posted by strongmanmike View Post
Geez how long were your subs.?? Using 10 - 15min subs I generally only have issues with satellites for the first hour or so after astronomical twilight and the last hour or so before...?

Cool composite though

Mike
Subs were 10 mins for RGB and 15 mins for Lum, Mike. I've never seen anything like this before. I'll have to do a little research on satellite orbits...
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Old 21-02-2016, 01:22 AM
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Atmos (Colin)
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Subs were 10 mins for RGB and 15 mins for Lum, Mike. I've never seen anything like this before. I'll have to do a little research on satellite orbits...
That is nearly incomprehensible in number! I would be more inclined to say that they're really from an alien station and moving in perfectly straight lines across the sky. The mass lines being from consistent return fire from SHIELD
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Old 21-02-2016, 08:39 AM
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omegacrux (David)
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Wow , that would be a pain in the date

David
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Old 21-02-2016, 09:11 AM
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This is amazing! You must have zoomed into a "satellite highway" LOL

BTW: Why do we need so much junk in space?
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Old 21-02-2016, 09:29 AM
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I can't believe how many there are. That's just insane!
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Old 21-02-2016, 09:41 AM
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WOW, that's ridiculous haha! I bet you were annoyed, none the less, it's a pretty cool picture. Surly it's not that congested all the time? You'll have to work out when it's not rush hour!

Erik
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Old 21-02-2016, 11:18 AM
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Amazing, annoying, funny.
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  #13  
Old 21-02-2016, 11:55 AM
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So, I did a little research on a satellite tracking web site.

It looks like imaging NGC2170 from a site in Australia wouldn't present any problems. From Brisbane, all of the geostationary satellites have declinations around +4 to +6 degrees.

However, from New Mexico where the scope was located, they are all around -4 to -6 degrees and when you look at how many are floating around out there the result is not surprising!

Cheers,
Rick.
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  #14  
Old 21-02-2016, 12:02 PM
el_draco (Rom)
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54 subs on NCG2170 and only 5 of them were clear of satellite trails. Most of them had at least half a dozen. Attached pic is the rejection map
Not satellites at all.... Obvious example of plasma canon fire and photon torpedo trails.... I bet the imperial star fleet was just out of frame... better luck next time
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  #15  
Old 21-02-2016, 12:24 PM
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Not satellites at all.... Obvious example of plasma canon fire and photon torpedo trails.... I bet the imperial star fleet was just out of frame... better luck next time
speaking of which, the Norse IPViking site is quite fascinating to watch. It's a real time view of cyber attacks detected by their honeypots.

http://hp.ipviking.com/

Cheers,
Rick.
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Old 21-02-2016, 04:06 PM
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You must be under a vogon flight path.
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  #17  
Old 21-02-2016, 04:24 PM
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You must be under a vogon flight path.
Just so long as they don't stop for poetry readings
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  #18  
Old 21-02-2016, 05:53 PM
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Wow.

Some objects seem to be near Satellite routes. M42 seems to be one of them.

Greg.
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  #19  
Old 21-02-2016, 06:49 PM
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Jetsons .... you hit a main hiway ....
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  #20  
Old 21-02-2016, 09:37 PM
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Wow! Will be very interesting to see how your artifact rejection software handles it, and whether the "saturn" section comes out ok on the final image.
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