Re: Raduga 27 spinup

Jason Hatton (
Wed, 9 Jun 1999 11:04:58 +0200 (MET DST)

>Together with Gunnar Glitscher, I had an oportunity to observe
>Raduga 27 this morning from 0:05 to 0:45 UTC. We observed
>two things:
>- The satellite is still spinning up. The period is now 78.5662 +- 0.005
>-  We both had the impression that the flashes are not symmetric. It seems
>   as if we have a bright -faint -bright -faint pattern, but this is very
>   Both (if they are different at all) were between mag 6 and 7.

I also made another long timing of Raduga 27 last night getting a similar
flash period (I have the exact timings at home). I didn't notice any major
differences in flash brightness between individual flashes, although I
wasn't looking for brightness differences. However, in previous
observations I have noticed some brightness differences between individual
flashes but I didn't note down which individual flashes were bright or

I'll look out for these brightness differences in future observations. It
might be interesting to see if there are any latitude / longnitude
differences for this effect.

Best wishes,


Jason Hatton
Hopital de l'Archet
Rte St. Antoine de Ginestiere
BP 79, 06202 Nice Cedex 03


email :

 43.667N, 7.223E, Alt 30M