Daytime Iridium Flares
Sun, 8 Feb 1998 16:21:55 EST

Next Friday (2/13) at 4:43pm local time (21:43 UT) there is a predicted -8
flare for my work location (39.1861N  76.6869W  34mASL).  It will be nearly
vertical (89 deg el).  At 4:43pm yesterday I noted the brightness of the sky.
Twlight isn't until about 6:10pm.

A question for the people on the list who have seen daytime flares:  How long
are they visible?  The evening and twilight flares that I've observed are
typically visible at 1x for as long as 15 secs.   I'm hoping for about 5
seconds for the daylight flare.

Don Gardner
76.8419 W, 39.1796 N,  34m ASL