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Discrepancy Detected In GPS Time
jones_supa writes that on Tuesday, 26th January, Aalto University's Metsähovi observatory located in Kirkkonummi, Finland, detected a rare anomaly in time reported by the GPS system (Google translation). The automatic monitoring system of a hydrogen maser atomic clock triggered an alarm which reported a deviation of 13.7 microseconds. While this is tiny, it is a sign of a problem somewhere, and does not exclude the possibility of larger timekeeping problems happening. The specific source of the problem is not known, but candidates are a faulty GPS satellite or an atomic clock placed in one. Particle flare-up from sun is unlikely, as the observatory has currently not detected unusually high activity from sun.
Was systemd installed on any of the satellites recently? Maybe it was installed unintentionally, while upgrading the satellite from Debian 7 to Debian 8?
Reading this, I really feel like I'm living in the future:
"The automatic monitoring system of a hydrogen maser atomic clock triggered an alarm which reported a deviation of 13.7 microseconds."
-Styopa
there really should be a way to correct time in a GPS satellite
1) Press and hold the Set Time button until the indicator lamp lights (5 seconds)
2) Press + or - until the correct time is reached
3) Release Set Time button.
Ephemeris only takes a few seconds to download. I think you meant Almanac which takes ~7 minutes and describes orbit with relatively low accuracy.
>Sure, you just have to update the configuration of all GPS devices on earth...
If only they were capable of receiving signals from some sort of satellite.
Oh yeah, don't do any root cause analysis or anything, just keep ignoring all those gravity waves jittering the clocks on our orbiting atomic clock satellite network :-P
I'm trying to teach myself to set people on fire with my mind... Is it hot in here?