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Locating landers by panoramic horizon imaging
lollipop
post Sep 9 2019, 09:35 AM
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Has anyone (for example the great Phil Stooke) ever described a procedure for establishing the location of a lander on a map or orbiter image by reference to peaks seen in horizon images taken by the lander?
This has proved to be a tricky one to search for on the forum although I know individual examples have been discussed both for MER and lunar landers. I thought of this while browsing an entirely different forum https://www.railforums.co.uk/threads/longes...ight-uk.136247/ where sightlines were being discussed, and posters were challenging the identity of horizon features seen from a known location, a sort of reverse problem to that faced on here.
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Phil Stooke
post Sep 10 2019, 08:34 PM
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Thanks, John.

This method is really the same as the standard method for finding your location on Earth by the process of Intersection (A similar method is called Resection). See this example:

https://www.armystudyguide.com/content/army...using-int.shtml


The more points you can identify the better.

Also, here is an illustration of the method for Chang'e 3.

Attached Image


Phil



--------------------
... because the Solar System ain't gonna map itself.
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HSchirmer
post Sep 10 2019, 11:22 PM
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QUOTE (Phil Stooke @ Sep 10 2019, 08:34 PM) *
This method is really the same as the standard method for finding your location on Earth ...

The more points you can identify the better.


Eh, "The Englishman who went up a hill and came down a mountain"...
http://www.surveyhistory.org/englishman_wh...t_up_a_hill.htm
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