Re: Superbird B1 flashes

From: Alain Figer via Seesat-l <seesat-l_at_satobs.org>
Date: Tue, 2 Apr 2019 15:08:00 +0200
Hi Cees,

Nice to give us that interesting info.

I have been observing the spectacular flashes by 1992-010A on 28 MAR 2019
from the Southern Alps,
although the observing session was of a rather short duration.
I measured the rotation period of the satellite at 28.6 seconds.

Photo (addition of 7 images)
https://www.flickr.com/photos/25296169_at_N07/46606544345/in/dateposted/


Detailed report with photo
https://www.flickr.com/groups/1983844_at_N22/discuss/72157632345715376/72157704374982712


Regards

Alain Figer
Vars 44.57°N ; 6.68°E ; 1850m a.s.l.

Le dim. 24 mars 2019 à 22:39, C. Bassa via Seesat-l <seesat-l_at_satobs.org> a
écrit :

> Hi all,
>
> This evening I captured bright flashes from what turns out to be
> Superbird B1 [21893/92010A]. The flashes appear to have a period of
> about 28 seconds, and around 20:03UT I estimate them at magnitude 3.
> The flashes decreased in brightness until they were no longer visible
> around 21:00UT (estimated to be fainter than mag 8-9). It may be that
> the flashes were even brighter before 20:03UT.
>
> These flashes may be reminiscent of those of Superbird A
> [20040/89041A]. For that satellite, the spin axis could be determine,
> which allowed Rob Matson to predict when flashes would be brightest
> for a given location on Earth. For a blast from the past, have a look
> at http://www.satobs.org/seesat/Oct-1996/0079.html and the SeeSat-L
> archives on Superbird A flashes.
>
> It may be worthwhile to monitor the flash behaviour of Superbird B1.
> Superbird B1 is slightly above the geostationary belt and is moving
> West. It currently is around 37 deg West.
>
> Regards,
>     Cees
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Received on Tue Apr 02 2019 - 08:09:44 UTC

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