[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [gpsd-dev] âCEP(50) 0.285 metersMime-Version: 1.0
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-dev] âCEP(50) 0.285 metersMime-Version: 1.0 |
Date: |
Fri, 22 Jul 2016 13:49:09 -0700 |
Yo Hal!
On Fri, 22 Jul 2016 13:21:03 -0700
Hal Murray <address@hidden> wrote:
> There are two tails/trails wandering out of the circles. One to the
> NW and one to the NE. There is also an interesting track in the SW.
Yeah, interesting, but inscrutable. I expect the infrequent way out
of bounds fixes. I find that pretty normal. The jump from CEP(50) to
CEP(90) is what strikes me as odd.
Just a WAG, maybe there is a delay in the base sending corrections the
rover.
> Can you see any pattern associated with them? Did they start or end
> when a satellite was added or dropped?
Not yet.
> Can you plot things using color to show the number of satellites? Or
> some quality indication?
Pretty much the whole time I had 12 sats in view and in use.
It is gpsprof, so I guess anything is possible. I doubt the scatter
plot is the way to dig at the individual wanders.
My main attack for a while will we be in geting the numeric precision
solid. Calculating things to about 11 significant decimal digits is
harder than it looks. A 64 bit long is only about 10 decimal digits.
For example, my longitude is 121.314064921W, but a long can only
hold 2147483647.
RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
address@hidden Tel:+1 541 382 8588
pgpW7itpWZAZw.pgp
Description: OpenPGP digital signature
- Re: [gpsd-dev] âCEP(50) 0.285 metersMime-Version: 1.0, Hal Murray, 2016/07/22
- Re: [gpsd-dev] âCEP(50) 0.285 metersMime-Version: 1.0,
Gary E. Miller <=
- Re: [gpsd-dev] âCEP(50) 0.285 metersMime-Version: 1.0, Norton Allen, 2016/07/22
- Re: [gpsd-dev] âCEP(50) 0.285 metersMime-Version: 1.0, Fred Wright, 2016/07/22
- Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0, Gary E. Miller, 2016/07/22
- Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0, Fred Wright, 2016/07/22
- Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0, Hal Murray, 2016/07/22
- Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0, Gary E. Miller, 2016/07/22
- Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0, Hal Murray, 2016/07/22
- Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0, Fred Wright, 2016/07/22
- Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0, Gary E. Miller, 2016/07/22
- Re: [gpsd-dev] ✘CEP(50) 0.285 metersMime-Version: 1.0, Fred Wright, 2016/07/22