[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[gpsd-dev] Leap Second - end of June
From: |
Hal Murray |
Subject: |
[gpsd-dev] Leap Second - end of June |
Date: |
Mon, 26 Jan 2015 20:40:38 -0800 |
IERS has announced that there will be a leap second at the end of June.
GPS satellites started announcing it around the start of Jan 22 UTC. (Or at
least that's when I first saw it. But who knows what sort of filtering or
voting is going on inside the receivers.)
The leap-second pending info seems to confuse some GPS receivers. They
report times that are early by a second. I have log data from one that was
early for a couple of days and then recovered.
Please keep your eyes open for glitches like that and/or don't bang your head
against the wall trying to find the bug in your code if your GPS receiver has
that bug. We should probably collect a list.
Eric: Would gpsd get confused if it was using 2 receivers and they differed
by a second?
The times when it was early roughly matched the times when I was having
troubles with gpsd. I didn't take any notes, but I may be able to pull
something out of log files.
There is another screwup that has been observed. The HP GPSDOs say the leap
will happen at the end of March rather than the end of June.
--
These are my opinions. I hate spam.
- [gpsd-dev] Leap Second - end of June,
Hal Murray <=