Re: Iridium 8 -2 mag flare

Ron Lee (ronlee@pcisys.net)
Sun, 24 Aug 1997 00:06:45

I was observing the same set of Iridium 4-8 passes during this timeframe.
The big difference is that my passes were to the west from local 2130
to 2210.   Iridium 8 was only seen briefly...then I scanned the projected
path for a flare. Nothing was seen on it or Iridium 7.   I tracked 4,5 and
6 in binocs and saw no flare.   All passes were southbound,  Will provide
details similar to Craig tomorrow, but it appears that southbound passes
in the evening should be to the east.

Ron Lee

At 21:41 97/8/23 PDT, you wrote:
>Yet another Iridium flare, this time of Iridium 8 (24792 97020A), in
>a pass uncannily similiar in geometry to the flare of Iridium 5 that I
>reported yesterday.  Here are the details, with the previous pass listed
>first and today's underneath it.
>
>                Sat  Sat Sat  Sun Sun    Flare
>      UT        Dir   AZ  EL   AZ  EL  Duration  Mag
>04:19:45 08/23  95    94  52  299 -17     8s     -4
>04:13:45 08/24  95   100  51  298 -16     7s     -3
>
>I ran Skymap to plot the two trajectories, and they almost overlay
>each other.  There's less than 1 deg verticle separation between
>the two passes, with the passes exactly parallel to each other.
>
>A few other Iridium passes before and after the passes above produced
>either no flares, or very minimal brightening.
>
> Craig Cholar    3432P@VM1.CC.NPS.NAVY.MIL
> Marina, California
> 36 41 10.3N,  121 48 17.9W    (36.6862, -121.8050)      UTC -7
>
>