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Article #28

Re: active planetary probes; should someone update the FAQ

#28
From: Nick Haines
Date: Tue, 27 Oct 1992 16:44
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In article <Bwr1xK.HsD@zoo.toronto.edu> henry@zoo.toronto.edu (Henry Spencer) writes:

[...]

   >... or Giotto, which I believe is still active...

   It's in hibernation after its second comet encounter, and will probably
   not be revived again -- it's too low on fuel to do much more, and its
   next Earth gravity-assist opportunity isn't until the end of the decade.

Thanks. Launch/encounter dates, anyone?

   >... I think that those two complete a roster of 10 probes in solar
   >orbits (or escape trajectories) from which we still receive signals.
   >Can anyone name any others?

   Well, the Pioneer Venus orbiter should have rated mention unless the FAQ
   was updated very recently, since it only just died.

It's in the FAQ, I deleted it from the list since it's dead.

   Pioneer 6 is still alive, and I think one or two of its later siblings
   are too, in near-Earth heliocentric orbits.

6, 7, and 8, according to the FAQ. I missed them.

Thanks for your other tips.

Nick
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From: nickh@CS.CMU.EDU (Nick Haines)
Newsgroups: sci.space
Subject: Re: active planetary probes; should someone update the FAQ
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Date: 27 Oct 92 16:44:49 GMT
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