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0 pointsnradov1mo ago0 comments

There might be some secret technology that we're unaware of but as far as we know magnetometers can only be used to detect underwater targets at very short ranges. I highly doubt that they're used on military reconnaissance satellites.

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jasonwatkinspdx1mo ago

Subs produce a surface level displacement wake that can be detected by SAR.

nradovOP1mo ago

No, a submarine wake can't be detected at any significant depth. That idea has been tried several times and it never worked, not enough signal. I suppose I can't rule out some secret scientific breakthrough but the basic physics involved make it highly unlikely.

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jasonwatkinspdx1mo ago

Subs produce a surface level displacement wake that can be detected by SAR.

nradovOP1mo ago

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