Observations of Ofeq 11 and updated elements

From: Ted Molczan via Seesat-l <seesat-l_at_satobs.org>
Date: Sun, 18 Sep 2016 11:56:11 -0400
Paul Maley tracked Ofeq 11 last night on video, from which I reduced the following points.

41759 16 056A   9802 G 20160918023751690 17 25 1807356-342231 37 S
41759 16 056A   9802 G 20160918023753525 17 25 1802822-340252 37 S
41759 16 056A   9802 G 20160918023801433 17 25 1743270-323363 37 S
41759 16 056A   9802 G 20160918023802601 17 25 1740407-321813 37 S
41759 16 056A   9802 G 20160918023807039 17 25 1729540-312201 37 S
41759 16 056A   9802 G 20160918023812277 17 25 1716804-301045 37 S
41759 16 056A   9802 G 20160918023818951 17 25 1700876-283270 37 S
41759 16 056A   9802 G 20160918023819718 17 25 1659086-282191 37 S
41759 16 056A   9802 G 20160918023825758 17 25 1645218-264883 37 S
41759 16 056A   9802 G 20160918023827927 17 25 1640274-261394 37 S
41759 16 056A   9802 G 20160918023832431 17 25 1630269-250215 37 S
41759 16 056A   9802 G 20160918023836535 17 25 1621459-235569 37 S
41759 16 056A   9802 G 20160918023841841 17 25 1610395-222870 37 S
41759 16 056A   9802 G 20160918023843843 17 25 1606325-215519 37 S
41759 16 056A   9802 G 20160918023848247 17 25 1557526-204254 37 S
41759 16 056A   9802 G 20160918023902228 17 25 1531866-170180 37 S
41759 16 056A   9802 G 20160918023903662 17 25 1529369-163756 37 S

Site 9802: 33.8117 N, 111.9524 W, 659 m

Adding these to Brad Young's observation the night before yields the following elements:

Ofeq 11                                                  345 X 598 km
1 41759U 16056A   16262.10113449  .00138035  00000-0  24500-2 0    00
2 41759 142.5282 325.3519 0184795  50.1757 311.5128 15.32477128    00
Arc 20160917.07-0918.11 WRMS resid 0.024 totl 0.009 xtrk

All elements were permitted to vary except for the rate of decay.

The elements reveal launch on 2016 Sep 13 near 14:40 UTC; however, that could change a bit once the actual rate of decay has been determined.

Ted Molczan



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Received on Sun Sep 18 2016 - 11:01:22 UTC

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