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Old 11-29-2003, 04:57 AM   #1
3lusive
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Default Linux Screenshot of real-time Sirius satellite tracking

http://www.geocities.com/l1nux3/xplanet.html

I set up and compiled Predict + Xplanet under Linux.
Its all 100% free. I get realtime satellite tracking,
now I can figure out how my signal strength varies
based on position of the sats.
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Old 11-29-2003, 10:13 AM   #2
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Linux Screenshot of real-time Sirius satellite tracking
 
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That's a very cool application.

I know it's free...but can I make a feature request? Could you add an overlay of the paths, so one could evaluate whether or not to expect reception to get better or worse in the near term?

Just a thought...
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Old 11-30-2003, 04:47 AM   #3
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next find a way to map repeaters
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Old 11-30-2003, 07:21 AM   #4
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First you would have to know where the repeaters are, which Sirius treats as a state secret.
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Old 11-30-2003, 07:25 AM   #5
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holy crap. How geeky cool is this thing. For some reason I can sleep better at night knowing where my satellites are.

Have you found a way to get the streams to work on Linux (Mozilla)?
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Old 11-30-2003, 08:14 AM   #6
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Are those sats updating at all?
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Old 11-30-2003, 10:16 AM   #7
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Sorry, I just re-read the topic title and realized that this is just a screenshot.

Any chanceyou'll be hosting the application soon, 3lisive?
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Old 11-30-2003, 01:04 PM   #8
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Default I am making a movie right now

I didn't write the program, the first part PREDICT is a console text-only used by hobbists and even NASA to plot satellite positions. PREDICT feeds the data into a program called EARTHTRACK which does nothing more than format the data to call XPLANET. XPLANET takes the data and presents images of day or night satellite views of the earth and then plots the data its given. What I did last night was change the C source code to EARTHTRACK.... I have it running continuously taking 1 minute "snapshots" and saving each frame as a JPG. Right now I have 600 JPGs, each a snapshot frame. I'm going to let it run 24 hours, take all the JPGs and using the motion JPEG tools on linux make it into a DVD quality movie and burn it to SVCD (my Philips DVD player plays SVCD). The frames are rendered 700x700, so mjpegtools will downsample them to dvd quality 480x480 and put them in mpeg2 video format. I have never done this but just having fun, right? I will set it so one minute = one second, so 24 hours will become a 24 minute long video. I'm hoping this turns out good.
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Old 12-01-2003, 12:59 AM   #9
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Wow that is really cool. It would be nice to see the orbital path though.
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Old 12-01-2003, 09:59 AM   #10
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Default Satellite Tracking

For satellite tracking programs and the orbital elements to drive them, see Dr. TS Kelso's site at www.celestrak.com . My preferred tracker for MacOS X is MacDoppler - see the link on celestrak under "Software Repository". MacDoppler is "pay to play", but, I believe the author allows a time-limited trial.

A word of warning when using these programs to evaluate the signal footprint. The graphic footprint of the sat on the earth illustrates the amount of ground visible to the satellite. This is very likely much larger than the actual signal footprint due to the use of spot beam antennas on the bird. The tracker programs have no way of incorporating this into the display.
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Old 12-01-2003, 10:12 AM   #11
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Default orbital paths

I have over 1000 frames rendered now and letting it run all day today too... I will try to convert this to mpeg2 video tonight and make it available for download on the internet.....You will get a 32 hour animation of Sirius... I added in a timestamp in the upper corner of the screen that is not visible on the current screenshot.

video coming soon......
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Old 12-01-2003, 10:26 AM   #12
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Default Re: orbital paths

Why don't you make it 23 Hours 56 Minutes and 4.1 seconds?

After that it just repeats itself.

Quote:
Originally Posted by 3lusive
I have over 1000 frames rendered now and letting it run all day today too... I will try to convert this to mpeg2 video tonight and make it available for download on the internet.....You will get a 32 hour animation of Sirius... I added in a timestamp in the upper corner of the screen that is not visible on the current screenshot.

video coming soon......
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Old 12-01-2003, 11:54 AM   #13
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Default Re: orbital paths

Quote:
Originally Posted by 3lusive
video coming soon......
Cool!
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Old 12-01-2003, 02:40 PM   #14
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Default Streaming on Linux

To answer the question about streaming Sirius website on Linux....

RPMs here:
http://www.mplayerhq.hu/homepage/design6/dload.html

MPLAYER run from the command line, will stream Windows Media
and uses Windows DLLs in linux. It does video AND audio.

Now, how you set up Mozilla to invoke mplayer...not sure on that one.
Linux can definately listen to Windows Media streaming radio online.
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Old 12-01-2003, 04:12 PM   #15
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Guys, check out this thread.
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