Delta 2/Thor 3 Elset
Ron Lee (ronlee@pcisys.net)
Sat, 06 Jun 1998 09:41:27 -0600
Thor 3 22:23 UT, 9 Jun 98
1 99999U 98-0xx A 98160.99180556 .00000040 00000-0 00000-0 0 18
2 99999 20.2900 51.0280 6953090 358.6830 1.5930 2.11625000 17
Thanks for posting the info Keith. The above elset is based on the
spacecraft separation data. The transfer orbit insertion burn occurs
north of Australia in daylight. However, the ascent up to the first
apogee is well placed for western hemisphere observers. But that is sometime
well after the burn so it will likely require optical aid or even a
telescope to observe.
This elset coincides with the lat/long but is about 20 seconds early.
I am still not certain about how well my mean motion matches the actual
period but in this case the possible error at least for the first rev
should be trivial.
If anyone knows when the geosynchronous burn occurs that may allow
someone to observe it...maybe even me!!!!!!
Ron Lee
At 06:12 PM 6/5/98 -0700, you wrote:
>DELTA 2/THOR 3 NOMINAL ORBITS
>
> SECO-1 SECO-2
>EPOCH (D/HH:MM:SS.SSS): 160/22:42:57.100 160/22:56:02.400
>PERIOD (MIN): 87.810 100.856
>INCLINATION (DEG): 29.209 28.169
>ECCENTRICITY (DEG): 0.001256 0.089358
>SEMI-MAJOR AXIS (KM): 6544.2131 7177.2961
>ARGUMENT OF PERIGEE (DEG): 136.194 181.058
>RA OF ASCENDING NODE (DEG): 51.061 50.990
>MEAN ANOMALY (DEG): 352.663 1.429
>START ORBIT TIME (HHH:MM:SS.SSS)MET:000:09:57.100 000:23:02.400
>END ORBIT TIME (HHH:MM:SS.SSS)MET: 000:23:02.400 001:10:22.200
>HEIGHT (KM): 151.6181 152.9354
>INJECTION LATITUDE (DEG): 22.44N 1.345S
>INJECTION LONGITUDE (DEG): 304.95E 351.374E
>INJECTION INERTIAL AZIMUTH (DEG): 109.346 118.156
>INJECTION TIME (D/HH:MM:SS.SSS): 160/22:42:57.100 160/22:56:02.400
>
> SECO-3 TECO
>EPOCH (D/HH:MM:SS.SSS): 160/23:43:22.200 160/23:46:19.400
>PERIOD (MIN): 116.180 680.113
>INCLINATION (DEG): 26.680 20.290
>ECCENTRICITY (DEG): 0.018213 0.695335
>SEMI-MAJOR AXIS (KM): 7887.0647 25618.1557
>ARGUMENT OF PERIGEE (DEG): 303.502 358.670
>RA OF ASCENDING NODE (DEG): 51.234 51.028
>MEAN ANOMALY (DEG): 48.119 0.598
>START ORBIT TIME (HHH:MM:SS.SSS)MET:001:10:22.200 001:13:19.400
>END ORBIT TIME (HHH:MM:SS.SSS)MET: 001:13:19.400 001:15:12.200
>HEIGHT (KM): 1409.4698 1413.6559
>INJECTION LATITUDE (DEG): 3.08S 0.692N
>INJECTION LONGITUDE (DEG): 151.12E 158.159E
>INJECTION INERTIAL AZIMUTH (DEG): 63.472 69.680
>INJECTION TIME (D/HH:MM:SS.SSS): 160/23:43:22.200 160/23:46:19.400
>
> S/C SEPARATION SECO-4
>EPOCH (D/HH:MM:SS.SSS): 160/23:48:12.200 161/00:08:08.800
>PERIOD (MIN): 680.045 103.970
>INCLINATION (DEG): 20.290 26.562
>ECCENTRICITY (DEG): 0.695309 0.088440
>SEMI-MAJOR AXIS (KM): 25616.4377 7324.2691
>ARGUMENT OF PERIGEE (DEG): 358.683 258.916
>RA OF ASCENDING NODE (DEG): 51.028 50.565
>MEAN ANOMALY (DEG): 1.593 170.271
>START ORBIT TIME (HHH:MM:SS.SSS)MET:001:15:12.200 001:35:08.800
>END ORBIT TIME (HHH:MM:SS.SSS)MET: 010:00:00.000 006:00:00.000
>HEIGHT (KM): 1466.5883 1579.4782
>INJECTION LATITUDE (DEG): 3.36N 25.070N
>INJECTION LONGITUDE (DEG): 164.90E 219.012E
>INJECTION INERTIAL AZIMUTH (DEG): 69.935 80.621
>INJECTION TIME (D/HH:MM:SS.SSS): 160/23:48:12.200 161/00:08:08.800
>
>
>Keith Stein
>Associate Technical Editor
>
>Launchspace Publications, Inc.
>http://www.launchspace.com
>
>