Re: GPS Week number rollover bug issues?
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About the GPS rollover bug, the document says that it happens every 1024 weeks, starting from 1 January 1980 0000z. So, this has happened once already, around 21 December 1999. The Y2K bug was all the rage then, but I don't recall widespread GPS issues. The upcoming April 2019 rollover probably won't be an issue either.
The document specifically comments on deriving time from the signals, not location information. It would seem if there would be a location issue, it would only be during the exact millisecond of the rollover, and would self-correct within the next few seconds. Non-critical for most civilian use.
So, unless you're using a GPS to control multimillion dollar stock trades that faithful moment in April 2019, you should be fine.
But, then again, I invoke the Dennis Miller clause here. "That's just my opinion. I could be wrong."
Awaiting the GPS apocalypse of 2019, 73.