At 08:35 14/08/00 +0100, you wrote: >a sat in the right place at the right time (mag 3.0), >but it wasn't flashing... I saw the majority of the >pass (S -> N), and it didn't flash once. > >The next night, I also looked for it, and there it >was again, not flashing UNTIL it got to approximately >its max altitude when it did start to flash. > >The next night, it was "as normal" (2/3 times/sec). > >My question is this: is this unusual behaviour? I >must have seen it at least 20 times before & it >has never "not flashed"... > Hello Mark, The reason of seeing a rocket body steady when you are sure that it is tumbling is that you are observing the rocket right on the rotation axis. I have seen it on several occasions with SL16 rockets and I even have two pictures when a steady behaviour of a SL 16(or J1 Zenit) transforms into a flashing behaviour. I'll try to put these pictures on my webpage. There will be an announcement on this mailing list. Greetings, Tristan Cools Belgian Working Group Satellites(BWGS) Damse Vaart: 3.2478E/51.2277N - OBS place 1 Ryckevelde: 3.2856E/51.2045N - OBS place 2 Brugge: 3.2166E/51.2104N - OBS place 3(home) http://gallery.uunet.be/tcools/satimage/index.htm ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Mon Aug 14 2000 - 02:08:50 PDT