[amsat-bb] Re: manual keplerian calculations

[Gordon JC Pearce MM3YEQ]

cathrynham wrote:
> Simon (HB9DRV) wrote:
>> ----- Original Message ----- 
>> From: "Jeff Wandling W7BRS" <jw at w7brs.com>
>>   
>>> ps. Again, reply directly -- this sort of question can make enough spam on
>>> the DL to last you through Festivus.
>>>
>>>     
>> A very good starting point is Dr Kelso's work on http://celestrak.com/
>>
>> And there's plenty (!) of C++ code out there which implements the 
>> algorithms, so (worst case) you could figure things from the code.
>>   
> 
> Bit of a digression, but you know what we need, one of these days,
> is an open source code library for satellite tracking -- ideally
> cross-platform for both *nix/Windows.  This is something that
> would get use outside of the amateur community.
> 

What does gpredict use?  It seems to work, so it would be a good start. 
  I wish I knew more about how to calculate the predictions...

Gordon