Obs 971109
Leo Barhorst (leobarhorst@pi.net)
Sun, 09 Nov 1997 22:25:23 +0100
Despite some clouds I made the following obs:
Didn't see the predicted mag -5.7 flare of Iridium 21.
Possible saw one of the 97- 69 object at 17:45:41.4 UT when it passed just
under Epsilon Hercules at mag 6, steady. Saw no other objects.
78- 96 A 97-11-09 17:06:39 LB 76.3 0.2 20 3.81 AA, 4->6,P= 3.22+4.41
See DRA obs below
80- 87 B 97-11-09 17:32:55 LB 72.0 0.2 9 8.00 FF,7->inv,some fl. miss.
86- 61 A 97-11-09 18:53:55 LB 33.1 0.2 20 1.66 'FFFF-'F, mag 4->inv
90- 4 B 97-11-09 17:57:41 LB 58.5 0.5 4 14.6 AA, mag 5->7
91- 7 B 97-11-08 18:11 LB almost S, mag 5
91- 19 B 97-11-09 16:52:39 LB 131.3 0.2 8 16.42 FF, mag 4->inv
still accelerating. Period a bit fluctuating: 16.31 17.06 17.18 16.47
16.33 15.43 16.13 16.42
93- 67 B 97-11-09 17:03 LB S, mag 5
94- 23 B 97-11-09 18:02:00 LB var, mag 2->3
94- 66 A 97-11-08 18:45 LB S, mag 5
UNID from yesterday
94- 85 B 97-11-08 18:06:18 LB 48.4 0.5 10 4.84 AA, mag 5->inv
95- 58 B 97-11-09 17:38:14 LB 83.8 1.0 2 41.9 MM, mag 3->8
going up slowly
DRA observation of 78- 69 A
78- 96A 97-11-09 17:05:26.35 LB 52.65 4.767 1 20
0 1 2 3 4 5 6 7 8 9
0 0.00 3.14 7.52 10.72 15.32 18.55 22.73 25.92 30.23 33.75
1 38.12 41.22 45.82 48.98 53.41 56.50 61.00 64.15 68.47 71.88
2 76.25
The period consist of two parts:
the total of the odd flashes is 32.19 sec over 10 periods -> 3.219
of the even flaskes this is 44.06 sec over 10 periods -> 4.406
The average is 3.813, as reported.
The odd periods varied between 3.09 and 3.52 sec,
the even periods between 4.18 and 4.60 sec.
So we have to speak of a period of 3.219 + 4.406 = 7.625 sec.
--
Greetings and clear skies
Leo Barhorst Alkmaar The Netherlands
52.65 North 4.47 East 3 m ASL
Every day I wonder about what I see in the sky