ARLA/CLUSTER: Detectada uma discrepância de 13,7 micro-segundos nos relógios por GPS

[João Costa > CT1FBF]

Discrepancy detected in GPS time

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.

Read the full story at
http://it.slashdot.org/story/16/01/26/1735223/discrepancy-detected-in-gps-time

Our thanks to *Stephen, G7VFY* for spotting this item
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