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Magellan EDR/RAW Data
Brian Swift
post Sep 11 2020, 09:03 PM
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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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kymani76
post Mar 17 2023, 08:32 AM
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Attached Image


For a little visual aid here is 3D view of the Maat Moons rendered at 4x vertical exaggeration , looking towards southeast, the area from the article is in the front. The Magellan DEM is really rough and blocky, producing kind of an artificial bench that is not really there, but it could possibly be a downward movement of lava that we are seeing. Unfortunately it will be a long wait until we get 250m/pixel DEM planned by the VERITAS mission for a better view.
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StargazeInWonder
post Mar 18 2023, 02:35 AM
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And after a few years' more wait, EnVision will provide 60m spatial resolution topography.

However, if there was any significant change during just a year of Magellan's mission, it seems likely that some more significant change will be there to be discovered after ~35 years, unless, improbably, there's just one location on Venus where change occurs.
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Posts in this topic
- Brian Swift   Magellan EDR/RAW Data   Sep 11 2020, 09:03 PM
- - Phil Stooke   I have used the mosaicked (tiled) data, not the ra...   Sep 11 2020, 10:38 PM
|- - mcaplinger   QUOTE (Phil Stooke @ Sep 11 2020, 02:38 P...   Sep 11 2020, 11:31 PM
- - JohnVV   this is an old thread but For about the next wee...   Jan 31 2022, 12:23 AM
- - kymani76   I get this result when using Venus Magellan SAR F...   Jan 31 2022, 10:29 AM
- - Phil Stooke   Hot off the press: https://twitter.com/ThePlaneta...   Mar 15 2023, 09:27 PM
- - mcaplinger   https://www.science.org/doi/10.1126/science.abm773...   Mar 15 2023, 09:44 PM
- - Phil Stooke   That does indeed apply to the putative lava flow, ...   Mar 15 2023, 11:56 PM
|- - mcaplinger   QUOTE (Phil Stooke @ Mar 15 2023, 03:56 P...   Mar 16 2023, 12:11 AM
- - Phil Stooke   I know about layover, but the changes don't lo...   Mar 16 2023, 12:40 AM
|- - StargazeInWonder   What seems to be brightening marking both sides of...   Mar 16 2023, 04:18 AM
- - kymani76   For a little visual aid here is 3D view of the M...   Mar 17 2023, 08:32 AM
|- - StargazeInWonder   And after a few years' more wait, EnVision wil...   Mar 18 2023, 02:35 AM
- - JohnVV   " The Magellan DEM is really rough and blocky...   Mar 19 2023, 12:45 AM
|- - StargazeInWonder   The radar maps in Fig. 2 A and B are annoyingly mi...   Mar 19 2023, 07:16 PM
- - Antdoghalo   A lot of the USGS products with Venus are a mess. ...   Mar 19 2023, 10:32 PM
|- - StargazeInWonder   It's a mess indeed. I don't know what bear...   Mar 20 2023, 02:29 AM
- - Brian Swift   FWIW, the paper's 2nd author, Dr Hensley, isn...   Mar 26 2023, 08:26 AM
- - dtolman   Researchers examining Magellan data found what app...   May 28 2024, 12:34 AM


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