Hello time-nuts, Came across this poster of the CHOMPTT cubesat mission. https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=3494&context=smallsat
Obviously, they are doing measurements on a per orbit basis. But if you had an optical ground station and the clock difference information (correction) you could calibrate your home clock. Basically, this is what we already do with GPS with CORS correction information to get much better than 20ns accuracy. One question that I have is the uncertainty with optical paths lower than for GPS (RF)? I suspect maybe. A system such as this might also provide an independent source of time to GPS. But don't we already have that with GLONASS, Beidou, and Galileo? Regards, Skip Withrow _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.