Radar And Mariner 10, Best possible mapping, pre-Messenger |
Radar And Mariner 10, Best possible mapping, pre-Messenger |
Apr 28 2005, 06:21 PM
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Senior Member Group: Members Posts: 2530 Joined: 20-April 05 Member No.: 321 |
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Jan 28 2008, 01:53 PM
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Solar System Cartographer Group: Members Posts: 10184 Joined: 5-April 05 From: Canada Member No.: 227 |
The omission of low resolution regions from the USGS maps probably stems from the procedure used. I think the maps were made using pre-assembled mosaics of the best images - and certainly from hard-copy. The extra work entailed in special processing of low resolution frames for the cartographers was probably not considered worh the effort, given that only a narrow slice of the terrain would be added, and that few unambiguous features would be seen. Mozart is an exception, obviously. This is very different from the Voyager situation where 50% or even 75% of a moon might only be seen at low resolution.
Sadly, the days of airbrush relief are pretty much over, but the laser altimeter will presumably give MOLA-like results to enable relief mapping. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PD: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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