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Chang'e-4 lunar probe and rover - CZ-3B- XSLC - December 7, 2018 (18:23 UTC)
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Topic: Chang'e-4 lunar probe and rover - CZ-3B- XSLC - December 7, 2018 (18:23 UTC) (Read 102209 times)
Phillip Clark
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Posts: 2616
Hastings, England
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Re: Chang'e-4 lunar probe and rover - CZ-3B- XSLC - December 7, 2018 (18:23 UTC)
«
Reply #240 on:
12/13/2018 02:10 pm »
A very interesting on-line piece by Scott Tilley:
https://skyriddles.wordpress.com/2018/12/13/eating-static-from-the-moon/amp/?__twitter_impression=true
Obviously I am hoping that there's nothing wrong with Chang'E 4 and that there is another reason for the apparent silence from the spacecraft.
(This was brought to my attention by Andrew Jones.)
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zubenelgenubi
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I've always been crazy but it's kept me from going insane - WJ.
Blackstar
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Re: Chang'e-4 lunar probe and rover - CZ-3B- XSLC - December 7, 2018 (18:23 UTC)
«
Reply #241 on:
12/14/2018 01:04 am »
https://skyriddles.wordpress.com/2018/12/14/x-marks-the-orbit/#more-396
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Liss
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Moscow, Russia
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Re: Chang'e-4 lunar probe and rover - CZ-3B- XSLC - December 7, 2018 (18:23 UTC)
«
Reply #242 on:
12/14/2018 08:25 am »
Well,
if we are to land at 178E on Jan 3, seeing the CE-4 orbit edge on,
and if we are to do LOI on Dec 12, three weeks before, notwithstanding why such a timeline was selected,
we should see the orbit now in the face on position.
Just a simple geometry.
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Phillip Clark
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This message reflects my personal opinion based on open sources of information.
Phil Stooke
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Canada
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Re: Chang'e-4 lunar probe and rover - CZ-3B- XSLC - December 7, 2018 (18:23 UTC)
«
Reply #243 on:
12/14/2018 06:01 pm »
Absolutely right! Speaking in approximate terms for simplicity, the moon rotates 90 degrees each week. At the time of orbit entry the orbit is seen face on (perpendicular to the orbit plane), a week later edge on, a week later face on, and one more week, edge on again, in time for landing.
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Satori
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Campo do Geręs - Portugal
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Re: Chang'e-4 lunar probe and rover - CZ-3B- XSLC - December 7, 2018 (18:23 UTC)
«
Reply #244 on:
12/19/2018 12:43 pm »
New thread for the lunar operations of the Chang'e-4 mission is now at
https://forum.nasaspaceflight.com/index.php?topic=47004.msg1889729#new
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zubenelgenubi
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centaurinasa
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Rui C. Barbosa
http://www.zenite.nu/orbita
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Chang'e-4 lunar probe and rover - CZ-3B- XSLC - December 7, 2018 (18:23 UTC)
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