J. Kocijanski (kocis@catskill.net) wrote: ] Last night I observed Cosmos 2219r at around 9:51 EDT moving NE ] through the Keystone. I seemed to vary in magnitude greatly. ] ... Does this indicate that it is tumbling? This object (22220, 92-76B) clearly was tumbling slowly on its pass over here last night; at one power I observed three maxima. Listening to WWV in the background, I estimated about 65 seconds between the second and third maxima. Other things-- There have been very spectacular passes of Iridiums 11 (24842, 97-30G), 14 (23836, 97-30A), and 79 (25470, 98-51D) here recently. Iridium 14 has been doing a series of double flashes separated by only about 0.5 second. Observed 99099 last night with binoculars, but I was not able to find Starshine (possibly due to some clouds in the way). ISS was nice but not exceptional. Milstar 3 (25724, 99-23A) and its Centaur (25725, 99-23B) are pretty easy to find on most passes as long as conditions are reasonably favorable. The Centaur's tumbling appears to be somewhat asymmetrical -- two equal maxima but one minimum fainter than the other; the maxima occur just a bit less frequently than the ticks of WWV. DSP 19 Titan (25670, 99-17B) is very bright, tumbling slowly. Some USA 86 (22251, 92-83A) passes recently have been visible at one power, even from mid-city. IntelSat 503 Rk (13007, 81-119B) is a nice almost one-power flasher that I've seen several times lately; its period is about 6.8 seconds. Happy Father's Day to all you dads out there! Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA