Thanks Paul.
Yes, I had the same reaction when I realized there were no checksums and I have fed back to this sat owner the errors and omissions in these tles for their action. I have no control over that.
Alan sent me Rick von Glahn's program Element Manager and I got it to fix these up enough they read into NOVA. But EM is flagging a couple of values in red. I have pulsed Rick about what checks he makes. He lives near me so I can go pound on his door if necessary :)
EM does seems to do a lot of stuff and I don't have the help file. But I'm sure Rick will be supportive.
I think I'm good for now.
Jim
On 12/21/2013 9:55 AM, Paul Williamson wrote:
Where in the world are you getting TLE sets that don’t have a checksum? Boo!
It would be a one-line change to make NASAWASH always ignore the checksum on input (it always regenerates the checksum on output). With a little more effort this could be controlled by a command-line switch.
I can probably generate a quick hack executable for you if needed. Let me know what platform. Or if you’re set up to compile C programs you shouldn’t have any trouble modifying NASAWASH.
-Paul
On Dec 21, 2013, at 6:05 AM, Jim White [email protected] wrote:
Thanks Paul. I had forgotten about nasawash. But it did not help with these sets because it requires a valid checksum and these have no checksum byte at all. Of course adding an arbitrary byte for the checksum does not help.
How about one that reads in tle's without regard to checksums and creates AMSAT format. Then creates TLEs from the AMSAT format. Perhaps that would clean them up. . .
Or something that reads a TLE and creates a valid checksum'd output. . .
Jim
On 12/20/2013 5:25 PM, Paul Williamson wrote:
There’s still NASAWASH, which will do some of that.
http://mustbeart.com/software/nasawash.html
The program could do more to fix spacing problems, but some of what you want is impossible or very difficult. The NASA format is pretty compact and doesn’t have a lot of redundancy that would make it easy for a program to figure out what was meant by some corrupted version.
-Paul
On Dec 20, 2013, at 3:19 PM, Jim White [email protected] wrote:
Does anyone know of a program that will 'repair' tle's so they have the right format, spacings, checksums, etc. to assure they will read into various tracking programs?
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