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MESSENGER update?
Posted: 20.08.2004, 23:55
by Dollan
Just curious...
Since it launched a day late, is there an update somewhere for the MESSENGER mission that I might have missed (which is always probable)? Or is this delay insignificant?
...John...
Posted: 21.08.2004, 00:02
by granthutchison
I'm checking back for updates on JPL Horizons from time to time (haven't done it for a while, because I've been off the edge of the Internet for a couple of weeks) - I'll update and make an announcement on the forum if/when I've built a new xyz.
Grant
Posted: 21.08.2004, 00:06
by Dollan
Cool. Thanks, Grant!
...John...
Posted: 22.08.2004, 15:37
by hjw
I've just queried xyz data from horizion. They start at 2004-08-03 07:15:00 (liftoff 07:15:56).
This positions the spacecraft above Papua New Guinea, distance to earth is about
1500km.
This is not exactly Florida. What is the problem?
- precision of horizon's data?
- precision of the position of earth (within celestia)?
I'm using the latest CVS celestia (a few days ago) on Linux SuSE 9.1
Re: MESSENGER update?
Posted: 25.08.2004, 00:41
by granthutchison
Dollan wrote:Since it launched a day late, is there an update somewhere for the MESSENGER mission that I might have missed (which is always probable)?
I've now updated the add-on using the new (post-launch) Horizons trajectory - it's available at
http://www.lns.cornell.edu/~seb/celestia/hutchison/messenger.html
Grant