Re: Very strange MIR pass
Thu, 15 Jul 1999 08:34:21 EDT

In a message dated 7/15/99 06:59:14 AM EDT, writes:

>  I live in a light
>  polluted region and could clearly distinguish clouded and
>  clear regions in the sky. Has anybody seen Mir in last 24hours
>  and recognized something unusual like this?

My area is somewhere between a city and a "dark sky" site.  I have never seen 
the entire Little Dipper at 1x at my location.  The biggest "obstruction" to 
viewing objects is the haze.

Last evening it was exceptionally clear for two visible passes of the Mir.  
The first pass was at 01:19 UTC (15 July).  The brightness peaked at -2.5mag 
(130az, 50el) and was steady until it went through the Summer Triangle in the 

During the second pass at 02:56 UTC the Mir was about a +1.5 mag as it passes 
below the Little Dipper (az345, el18).  It brightened to a -2.5 mag for about 
7 seconds at 02:57:20.

I did not observe a cyclic brightness variation on either pass.

Don Gardner  39.1796 N, 76.8419 W, 34m ASL