Hi Ron and list, Here is the nominal insertion orbit and burn times of the Eutelsat W4 spacecraft which will be the prime (only?) payload of the Atlas 3A launch today. I've also appended a derived elset for the nominal injection orbit. Chris Chris Peat, Heavens-Above GmbH E-mail: Chris.Peat@heavens-above.com Web site: www.heavens-above.com > The inaugural launch of the Atlas 3A will occur on Monday, > 15 May EDT. Depending on when the geo transfer orbit occurs, > the apogee burn MIGHT be visible from the US. > > Does anyone have details on the orbit and burn times? > > Since it is probably a liquid upper stage, it may be invisible > compared to an IUS type booster but it is worth trying anyway. Satellite : EW4 / EUTELSAT W4 SatID : 0099901 Epoch : 2000/05/15 22:05:53.360 Reference System : True equator and equinox of data Keplerian elements: Semimajor axis : 29497.8360 km Eccentricity : 0.777131250 Inclination : 18.173368 deg RA ascend. node : 20.308572 deg Arg. pericenter : 179.184070 deg Mean anomaly : 1.732833 deg State vector: x : -5159.0358 km y : -4336.1295 km z : -747.1404 km x-dot : 5.17334454 km/s y-dot : -8.21957614 km/s z-dot : -3.11991641 km/s Spacecraft parameters : Mass : 3190.0 kg Area(CR) : 10.00 m^2 CR : 1.300 Area(CD) : 10.00 m^2 CD : 2.300 Maneuvers: 5 Start Date UTC Duration Mass flow Frame Delta-v [s] [kg/s] [m/s] 2000/05/17 08:25:56.6 2894.5 0.1353 x -130.824 y 368.926 z -110.014 2000/05/19 07:21:19.1 4266.7 0.1353 x -235.591 y 648.071 z -197.232 2000/05/22 02:58:33.3 1355.0 0.1353 x -86.5050 y 241.918 z -74.2457 2000/05/23 20:17:41.7 763.7 0.1353 x -52.8332 y 148.137 z 36.9081 2000/05/25 07:20:03.4 149.6 0.1353 x -10.3240 y 30.9796 z -0.07791 Comment: Nominal injection and strategy for a launch on 15 May 2000 21:37 UTC (Lift off) Derived two-line elements: 1 77778U 00078A 00136.92075648 -.00000000 00000-0 +00000+0 0 00016 2 77778 18.1707 20.4031 7746982 179.0532 1.7622 1.74053842 04 ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sun May 14 2000 - 23:55:42 PDT