Iridium 80 double flash

From: Scott D. Young (sdyoung@mb.sympatico.ca)
Date: Sun May 05 2002 - 02:26:04 EDT


I was out with my Intro astronomy group for a planetary observing session, 
and we were watching for the predicted -6 mag. flare of Iridium 80 at 23:31 
local (for Winnipeg, Manitoba, Canada). 10 minutes *before* the predicted 
flare, we observed a mag -6 flare in the right spot. We thought we had 
written the prediction down incorrectly (we hadn't), but watched until the 
predicted time anyway. At the predicted time there was a fainter, -2 flare 
in about the right spot as well. What would have caused the first one? It 
looked like an Iridium flare, but which one? Heaven's Above didn't predict it.

Thanks,

Scott


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