Re: Geosynch Flasher seen in Colorado

Robert Sheaffer (
Sat, 28 Sep 1996 21:47:44 -0700 (PDT)

Ron Lee
> Then about 9:24 PM MDT (3:24 UT), the flashes resumed.  The 
> first period was 23.4 seconds.  Note that this was going from 
> BRIGHT flash to Faint flash back to BRIGHT flash.  The same
> period was observed on one additional attempt.

I didn't get exact measurements today (Sat PM local), but the period
of visibility in binoculars was about 03:20-03:29 UT. Last night it
was approximately the same.

> It exhibited a definite ramp up and down in brightness, eventually
> becoming visible in binoculars.  Estimated max magnitude was 3-4.
> It should have been visible to naked eye without glare from
> nearly full moon.  

My observations exactly.

> I still do not understand why an event that is probably tied to 
> specific viewer-satellite-sun orientation should occur at the same
> time for viewers about 16 degrees apart in longitude.  I am at 104.56
> degrees west, latitude 38.9478, 2073 meters, (UT-6).
> If someone can educate me on why this happens, please do so.

Me, too. I'm as puzzled as Ron is!

Somebody has gotta figure out the geometry of this thing.

It's probably visible to observers in Hawaii now, if there are any.
And I want to know if anybody in Australia or Asia can see it before
dawn. And if so, when??


        Robert Sheaffer - - Skeptical to the Max!

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