You are correct. I did most in my head late last night and kind of lost my focus as I was finishing. I was attempting to see roughly what timing accuracy was needed. I meant to end the sentence with a question mark.
Thomas Knox > Date: Fri, 4 Apr 2014 13:01:12 +0100 > From: [email protected] > To: [email protected] > Subject: Re: [time-nuts] Water on Enceladus - What does this imply about > NASA'a ability to measure frequency? > > On 4 Apr 2014 08:55, "Tom Knox" <[email protected]> wrote: > > > > 90 microns is approx a freq res of about 1 x 3.66 -12 > > > > Thomas Knox > > Since the Doppler shift is prortional to the frequency, I can't see how > one can determine the absolute frequency. > > But given light travels at 3e8 m/s and they can resolve 9e-5 m/s, I would > have thought that the frequency resolution needed was 9e-5/3e8=3e-13. We > are differing by more than a factor of 10. > > Dave > _______________________________________________ > 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. _______________________________________________ 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.
