[time-nuts] Problem behind failing Galileo clocks identified
Tom Van Baak
tvb at LeapSecond.com
Sun Jul 23 08:41:32 EDT 2017
> My guess.
Perhaps a time nut will eventually find and share a technical paper with all the details.
Meanwhile, let's not use time-nuts as a public guessing forum.
Some background on the Galileo clocks, including photos and ADEV plots:
"The Onboard Galileo Rubidium and Passive Maser, Status & Performance"
"Space Passive Hydrogen Maser Performances, lifetime data and GIOVE-B related telemetries"
"Synchronizing 30 navigation satellites within 1 ns"
"Latest & future Evolutions on Atomic Clocks for Global Navigation Satellites"
[ 04_28 September - Session 6 - Panel 6.1 - Pascal Rochat, Spectratime.pdf ]
If anyone has additional technical links to Rb and PHM clocks used for GNSS, feel free to post links.
----- Original Message -----
From: "paul swed" <paulswedb at gmail.com>
To: "David J Taylor" <david-taylor at blueyonder.co.uk>; "Discussion of precise time and frequency measurement" <time-nuts at febo.com>
Sent: Saturday, July 22, 2017 12:45 PM
Subject: Re: [time-nuts] Problem behind failing Galileo clocks identified
> Hmmm Tantalum caps perhaps. My guess.
> But really no details. Curious though.
> On Sat, Jul 22, 2017 at 3:10 PM, David J Taylor via time-nuts <
> time-nuts at febo.com> wrote:
>> "Investigators have uncovered the problems behind the failure of atomic
>> clocks onboard Galileo satellites, the European Commission said." See:
>> May be of some interest.
More information about the time-nuts