Spy satellites either image in the optical, listen in to RF, or use RADAR. Only the RADAR satellites require high power. Sensors, even if cryogenically cooled, are relatively low power.
-John ============= [snip} > Regarding nuclear powered > satellites, I suspect that spy satellites are nuclear powered but since > they > are classified, who knows. Perhaps future GPS satellites with higher > powered > transmitters could be nuclear powered and classified. [snip] _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
