home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.space
- Path: sparky!uunet!usc!rpi!newsserver.pixel.kodak.com!ekcolor!dj
- From: dj@ekcolor.ssd.kodak.com (Dave Jones)
- Subject: Re: Galileo's high-gain antenna still stuck
- Message-ID: <1992Dec31.185125.5352@pixel.kodak.com>
- Sender: news@pixel.kodak.com
- Organization: Vonnegut Tent Rentals, Inc.
- X-Newsreader: TIN [version 1.1 PL7]
- References: <C0443L.8w2@news.iastate.edu>
- Date: Thu, 31 Dec 92 18:51:25 GMT
- Lines: 23
-
- Marc N. Barrett (barrett@iastate.edu) wrote:
- > In article <1992Dec30.223543.23648@news.arc.nasa.gov> baalke@kelvin.jpl.nasa.gov (Ron Baalke) writes:
- > > Yesterday, December 29, after approximately 20 hours of
- > >warming in sunlight, the antenna-deploy motors were turned on to
- > >"wind up" the system and then pulsed to "hammer" it in an effort
- > >to free the stuck ribs of Galileo's high-gain antenna. The
- > >procedures began at 6:55 a.m. PST and continued until 2:48 a.m.
- > >PST this morning, December 30. A total of 2160 pulses were
- > >executed by the motors during this period. The stuck ribs were
- > >apparently not freed. This morning the spacecraft was returned
- > >from the warming attitude to the normal cruise mode.
- >
- > Well, what now? What else is being planned to free the antenna? And is
- > it expected to work?
- >
- According to the calendar released here recently, there are at least two
- more hammering episodes scheduled. After that it's plan B: use the LG
- antenna, data compression and other techniques to do as much of the mission
- as possible.
-
- --
- ||------------------------------------------------------------------------
- ||Dave Jones (dj@ekcolor.ssd.kodak.com)|Eastman Kodak Co. Rochester, NY |
-