Re: Orientation of discarded HST array
Bill Welker (wwelker@wizrealm.com)
Mon, 10 Mar 1997 19:58:46 -0700
tcools@nic.INbe.net wrote: (about the HST Array)
>
> Here are all the photometric period measurements found in PPAS6:
>
> 90- 37 C 93-12-24 00:44 RIK 23 mag +7->4(4.5)
> 90- 37 C 94-02-11 01:26 MM 15 0.5 1 15 3.5-7
> 90- 37 C 94-02-12 01:31:25 WJW flashes to mag 8
> 90- 37 C 94-02-14 01:39:22 WJW peak elevation 20 degrees
> 90- 37 C 94-02-15 01:43:16 WJW problem with stopwatch
> 90- 37 C 94-03-30 02:47:17 WJW visible continuously
> 90- 37 C 94-05-14 04:20:46 WJW twilight, flashes visible
> 90- 37 C 94-05-16 04:23:14 WJW 71.8 0.1 9 7.98 sm
> 90- 37 C 94-05-17 04:26:13 WJW 71.8 0.1 9 7.98 sm
> 90- 37 C 94-08-24 01:54 MM 103.9 0.5 6 17.3 5-7, flash to 2
> 90- 37 C 94-11-27 02:11:22 WJW 52.0 0.1 6 8.67 sm, shadow
> 90- 37 C 94-11-28 02:11:25 WJW 69.3 0.1 4 17.3 2 complete array notation
> 90- 37 C 95-10-27 00:36 MM 51.6 0.5 3 17.2 flash to 3
>
> General conclusion would be that the solar array is still tumbling with a
> period of about 17 seconds. Its period didn't change much from 94-02-11
> untill the last observation so I do not believe it has settled into a stable
> position.
>
> Still it should be nice to have some new observations of it, at least to
> know for sure.
>
> Greetings,
> Tristan Cools
Well, as of November 10, 1996, my (unsubmitted) observations show the
flash period to be 17.6 seconds. So, I can safely say the array has
slowed only slightly since mid-1994. One of these days I'll get around
to submitting my flash measurements of the Array .... just so many
things to do ....
Bill Welker