Re: STS88 and ISS: Different Behavior

Mir16609@aol.com
Wed, 6 Jan 1999 23:29:30 EST

In a message dated 1/7/99 1:32:42 AM !!!First Boot!!!,
dk058@cleveland.Freenet.Edu writes:

> A careful reading of a message from Jim Cook suggests there are now 2 
>  sources for elsets: 
>   
>  http://station.nasa.gov/realdata/elements/ 
>   
>  and 
>   
>  http://spaceflight.nasa.gov/realdata/elements/ 

This evening 20:30 EST from 
http://station.nasa.gov/realdata/elements/
ISS
1 25544U 98067A   99003.32155382  .00026210  00000-0  37584-3 0  9340
2 25544  51.5942 306.4444 0003826 341.9279  18.1737 15.56155417  6897

From:
http://spaceflight.nasa.gov/realdata/elements/
ISS
1 25544U 98067A   99003.32155382  .00026210  00000-0  37584-3 0  9340
2 25544  51.5942 306.4444 0003826 341.9279  18.1737 15.56155417  6897

ISS
1 25544U 98067A   99006.40387792  .00021758  00000-0  30951-3 0  1956
2 25544  51.5949 291.0141 0003725 350.9539   9.1561 15.56291089  7368

If this were a Cosmos R/B it probably wouldn't matter but for an object that
will be maneuvered from time to time a 3 day gap in elsets is a large one.
There was some concern expressed recently when the Mir boosted it orbit for
the first time in over a year.   Three days produced a rather large error in
the predictions.

IMO the preferred link for the most recent elsets is OIG.   When retrieved it
does not count against the 100 TLE/day limit.

Cheers.
Don Gardner
Homepage: http://hometown.aol.com/mir16609
39.1796 N,  76.8419 W, 34m ASL