Re: Estimated Orion EFT-1 Elements

From: daryl bahls via Seesat-l <seesat-l_at_satobs.org>
Date: Sun, 30 Nov 2014 14:27:30 -0500
 Greg - I've taken a look at the 'close of window' elsets and it looks like Orion in the Final Orbit will be setting in the ENE from southwestern South Africa about sunset.  Range is upwards of 10,000 km at that time.  Good solar phase angle, but I suspect it might be too bright out and the spacecraft too faint.  Good luck!

End of window launch would also preclude any visibility from US and Mexico.  Hawaii might still have an opportunity in the initial orbit, but final orbit visibility will be long after sunrise for an close of window launch.

 
LAUNCH AT OPEN OF WINDOW (1205 UTC)
EFT-1 Initial Orbit
1 99000U 14999A   14338.51572917 -.00000000  00000-0 -00000-4 0 00010
2 99000 028.8000 075.9199 0509717 149.6600 356.5000 15.15120000000010
EFT-1 Final Orbit
1 99001U 14999A   14338.58690972 -.00000000  00000-0 -00000-4 0 00020
2 99001 028.8000 075.2610 3154860 140.3900 021.9900 09.73703000000020

LAUNCH AT CLOSE OF WINDOW (1444 UTC)
EFT-1 Initial Orbit
1 99002U 14999A   14338.62614583 -.00000000  00000-0 -00000-4 0 00010
2 99002 028.8000 115.7787 0509717 149.6600 356.5000 15.15120000000010
EFT-1 Final Orbit
1 99003U 14999A   14338.69732639 -.00000000  00000-0 -00000-4 0 00020
2 99003 028.8000 115.1198 3154860 140.3900 021.9900 09.73703000000020


Daryl

 

 

-----Original Message-----
From: Greg Roberts via Seesat-l <seesat-l_at_satobs.org>
To: seesat-l <seesat-l_at_satobs.org>
Sent: Sat, Nov 29, 2014 10:04 pm
Subject: Re: Estimated Orion EFT-1 Elements


Many thanks Daryl - saves me having to work them out :-))

If launch occurs near the end of the window then there may be some 
visibility in Southern Africa.

Cheers
Greg

 
_______________________________________________
Seesat-l mailing list
http://mailman.satobs.org/mailman/listinfo/seesat-l
Received on Sun Nov 30 2014 - 13:28:18 UTC

This archive was generated by hypermail 2.3.0 : Sun Nov 30 2014 - 19:28:18 UTC