[Clocks in GPS satellites] > I said "drift-free Rubidium" :-) > They last longer.
I've seen comments about Rubidium having better short term stability than Cesium. What's "short" in that context? How often do the ground stations talk to the satellites? Is it reasonable to correct for the drift? If the drift is slow enough the communication channel is already in place. It shouldn't be too much work for the ground stations to track the frequency as well as position. There is probably a good writeup on this someplace. Anybody seen one? -- The suespammers.org mail server is located in California. So are all my other mailboxes. Please do not send unsolicited bulk e-mail or unsolicited commercial e-mail to my suespammers.org address or any of my other addresses. These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts