Comments on: ISEE-3 engine burn https://behindtheblack.com/behind-the-black/points-of-information/isee-3-engine-burn/ Wed, 09 Jul 2014 16:40:36 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Robert Zimmerman https://behindtheblack.com/behind-the-black/points-of-information/isee-3-engine-burn/#comment-174628 Wed, 09 Jul 2014 16:40:36 +0000 http://behindtheblack.com/?p=29306#comment-174628 In reply to joe.

I think the window is in connection with when Arecibo can contact the spacecraft. The actual window for making the course change extends for several more weeks.

I have posted an update explaining some of the issues yesterday.

]]> By: joe https://behindtheblack.com/behind-the-black/points-of-information/isee-3-engine-burn/#comment-174614 Wed, 09 Jul 2014 16:07:12 +0000 http://behindtheblack.com/?p=29306#comment-174614 They mention Arecibo, that is the big radio telescope in Puerto Rico, what is significant about this window, did they lose signal, or is signal dependent upon line of sight?

]]> By: Robert Zimmerman https://behindtheblack.com/behind-the-black/points-of-information/isee-3-engine-burn/#comment-174608 Wed, 09 Jul 2014 16:00:58 +0000 http://behindtheblack.com/?p=29306#comment-174608 In reply to Pzatchok.

This is a 1980s-built spacecraft. Ion engines hadn’t really been developed yet. It uses basic chemical thrusters.

]]> By: Pzatchok https://behindtheblack.com/behind-the-black/points-of-information/isee-3-engine-burn/#comment-174594 Wed, 09 Jul 2014 15:01:05 +0000 http://behindtheblack.com/?p=29306#comment-174594 Any idea of what type of engine they are using?

ION or chemical burn?

]]> By: wodun https://behindtheblack.com/behind-the-black/points-of-information/isee-3-engine-burn/#comment-174579 Wed, 09 Jul 2014 13:58:18 +0000 http://behindtheblack.com/?p=29306#comment-174579 Drama! I hope they are successful. It is amazing they can attempt this at all. We have some awesome Alpha Nerds.

]]> By: Blair Ivey https://behindtheblack.com/behind-the-black/points-of-information/isee-3-engine-burn/#comment-174479 Wed, 09 Jul 2014 04:39:59 +0000 http://behindtheblack.com/?p=29306#comment-174479 This is an interesting story. A private enterprise attempting to wring additional useful life from a ‘defunct’ platform may be a model for others to follow. Even if the attempt isn’t successful, it will provide a useful example.

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