Irid 11 flashes observed

Frank Reed (f-reed@metabien.com)
Wed, 03 Jun 1998 21:00:17 -0700

On June 3, 1998, 8:17:25 MST (4 June 1998 03:17:25 UTC) I observed the
first of
three flashes from Iridium 11.  The stopwatch timed intervals between flashes
were 5.30 and 5.62 seconds, thus the average measured interval between flashes
was 5.46 seconds.  The estimated magnitudes and UTC time of day as measured by
stop-watch referenced to WWVB, and corrected for my estimated reaction time of
0.25 seconds were as follows:

mag.   UTC (4 June 1998)

-1     03:17:25.44
-1     03:17:30.74
+1     03:17:36.36

The above times were measured with reference to WWVB and are believed to be
accurate to well within +- 1.0 second.  

-- Frank Reed
Scottsdale, Arizona, USA  111.898W  33.484 N  1227 feet