Obs 11 june 1999

Barhorst L.J.C. (L.J.C.Barhorst@arcadis.nl)
Mon, 14 Jun 1999 08:50:02 +0200

Just a few obs before clouds came in.

63- 14 A 99-06-11 22:20:31   LB  100.0 0.5   5 20.0   AA, mag 7->inv
Difficult to obtain, but once spotted easier to follow
Timings: 19.5 19.81 20.40 20.21 20.23 sec

84- 56 B 99-06-11 22:11:35   LB  121.8 0.5   2 60.9   AA, mag 5->inv
91- 19 B 99-06-11 22:33      LB                       almost S, mag 5
No flashes measurable

92- 94 A 99-06-11 22:00:32   LB  129.4 0.2   6 21.57  'F-A'F-a'F, 4, sm, 3+5
Complex pattern, the sharp flashes were mag 4, a flatter secondary max was
mag 3 in one cycle and mag 5 in the next

96- 51 B 99-06-11 21:17      LB                       S, mag 4
98- 43 D 99-06-11 21:30      LB                       almost S, mag 4
98- 45 B 99-06-11 21:27:14   LB  146.1 0.5   4 36.5   AA, mag 4->inv

Also observed an UNID when following 98- 43 D; it moved from Bootis to
Polaris and was flashing. Timings: 2.58 6.80 2.30 6.13 7.39 4.14 4.23 sec.
At first I missed some flashes, but the last two timings were on bright 
sharp flashes to mag -1. In PPAS format:
99-999LB 99-06-11 21:32:20   LB   33.5 0.2   8  4.19  FF, mag -1->inv

Saw unexpectedly an Iridium flash at 21:53 UT just to the north of Beta Leo.
It lasted about 5 seconds and was mag -3. Slowly moving to the north.

Greetings and dark, clear skies
Leo Barhorst                             493 obs in 1999
52.766 N  5.09 E  2 m ASL