Re: TiPS

Ted Molczan (molczan@fox.nstn.ca)
Sat, 17 Aug 1996 11:12:35 -0400

Alphonse Pouplier asked:

> For how long are the following TLE valid?
>  
> TiPS             3.5  0.0  0.0  5.7 
> 1 96290U 96029  ? 96203.14225450  .00000250  00000-0  31455-3 0    06 
> 2 96290  63.4290  89.9941 0003001 264.4275  95.5725 13.63763114    04 

The decay rate is quite low, and the objects are not manoeuvrable, so
I estimate a prediction time uncertainty of about 5 seconds, even though
the elements are about one month old. The objects' NORAD elements are 
secret, so we have to rely on hobbyists' elements.

> Where is it possible to get more recent ones ?

Generally, the folks who update them, or their correspondents, post
them to Seesat-L from time to time. The objects are now entering
morning visibility at the mid-northern latitudes, enabling new
observations, and hence new elements. All observers are welcome to recover
the objects, make precise observations, and post the data on Seesat-L,
which will hasten and improve the elset updating process.

Ted Molczan