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A comment on NovaSAR: UK radar satellite to track illegal shipping activity.

Re:NovaSAR: UK radar satellite to track illegal shipping act... by dzhiurgis on Tuesday September 18, 2018 @06:05AM (#18013904)
FWIW Iridium already does the same thing on a global scale. Includes AIS and ADS-B tracking (tho both can be switched off easily).
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Re:NovaSAR: UK radar satellite to track illegal shipping act... by danielvf on Tuesday September 18, 2018 @08:59AM (#18014859)
That’s not really the same thing at all - listening for a deliberate transmission from a ship announcing its location is easy, required only an antenna, and can be done from a cubesat.

This is an active radar in space.

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