Iridium Tumblers
 
  Ir27 t

 Iridium 27 06:15 UTC 3 Aug. 1999- note the flash pattern. Brightest one was
 approx -7. Bright star to the upper right is Altair, pic by Jari.  This object had a
 rotation rate of 3.5 to 4 secs in 98-99, as of May 2000 it has slowed to
 near 7 seconds.  Bjoern Gimle and Rob Matson are near to determining its
 spin axis.
 
 
Iridium 27 t

Photo by Jari- Sat # 24947  97057D,  taken May 21, 1999 at 04:49 UTC. Mag 3.9 visible
streaks join the flashes in a vertical trail left of center, better seen in the enlargement,
(click on the photo).(Fuji 400, f2 50mm).
 

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  Iridium 71 t
Came out of shadow near zenith and gave one Flash at 21:46:49.37, mag -1.5 and remained
invisible for the rest of the pass.  April 12, 1999.  Its the elongated track at the very top middle
of the exposure under the red asterisk.  The two brighter stars right and below center are
Merak and Dubhe.

  Iridium 85 t 

Iridium 85 t,  (left of center) a flash at mag 3.0 after passing below Arcturus, (Center).  It passed from lower right to upper left. June 3, 1999   02:51:45.96 GMT, 75mm , 800 ASA.  It gave a nice trio of 3.0, 7.0 & 3.0 Flashes later in the pass.  (See Data sheets at Sat-Tracks.com, go to Satpasses page and then to data pages.)
 

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