pswiggle(1) on Linux
The text c500a22c0a31, as Debian 2.2 (Potato) shipped it.
Plot anomaly along track on a map
Flags it lists
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-M -
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-O -
-P -
-R -
-S -
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-U -
-V -
-W -
-X -
-Y -
-Z -
-bi -
-c