Magellan EDR/RAW Data |
Magellan EDR/RAW Data |
Sep 11 2020, 09:03 PM
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#1
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Member Group: Members Posts: 425 Joined: 18-September 17 Member No.: 8250 |
Just curious, has anyone gone spelunking in the Magellan SAR EDR (raw) dataset?
https://pds-imaging.jpl.nasa.gov/data/magellan/edr/ Looks like a set of 9-track mag tapes were copied to CD-ROMs for preservation, and at some point the CD files were put online in PDS. In starting to look at it, I realized that lack of knowledge of mag tape volume/label/file/record structure and terminology may impede younger explorers of this dataset. |
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Mar 16 2023, 12:40 AM
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#2
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
I know about layover, but the changes don't look like layover to me. But we will see.
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 PDF: 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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Mar 16 2023, 04:18 AM
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#3
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Member Group: Members Posts: 251 Joined: 14-January 22 Member No.: 9140 |
What seems to be brightening marking both sides of the smaller, earlier version of the caldera do seem to be real topographical features that are substantially different in the later image. Of course, there's no possible limit to the weird interactions that could make terrain look different from different radar angles, but this would be a really insidious artifact if it is an artifact. I guess for anyone to evaluate it fully they'd have to add a study of what sorts of other apparent differences have been seen elsewhere on Venus to see how unique this apparent difference is.
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