Thanks! ... I n t e r e s t i n g . . . PIco-gyros!
I don't know what shape those were in when Hubble was in the design stage. Some of earlier reference to their application in missiles dates to the early '80's but that may have been too late/too classified* for use on the Hubble.
Recall the NSA (NRO ?) had a couple of spare Hubble performance class never used spy sats hiding in the basement. It would surprise me one bit that sharing of guidance tech with mostly-civilians was off the table too.
Recall the NSA (NRO ?) had a couple of spare Hubble performance class never used spy sats hiding in the basement. It would surprise me one bit that sharing of guidance tech with mostly-civilians was off the table too.