Iridium 81 Pre-Flare Dimming

Tom Smith (tska@deltanet.com)
Sat, 13 Mar 1999 17:07:59 -0000

>Iridium 81 flared as predicted this evening at about 19:22 local = 01:22
>3-13 UTC. Reached about -1.5 in the SE. Comparison star, Sirius. Seemed
>a fairly normal flare, except that it dimmed once before reaching full
>brightness.
>
>Best, Mark
>
>lat 33.712 long -117.837 altitude ~34 m

I also saw this pass, and observed the same pre-flare dimming.

Tom Smith
33.8423 N    117.9717 W    30m
tska@deltanet.com