[time-nuts] tracking position & orientation

[Björn]

No... NRCAN is one of the few that do not require both L1 and L2 observables. It also accepts only L1.   /Björn

Sent from my iPhone

> On 23 Nov 2019, at 08:22, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
> 
> --------
> In message <SN1PR07MB390174DFEF62F4BF054C814ACE480 at SN1PR07MB3901.namprd07.prod.outlook.com>, Mark Sims writes:
> 
>> NRCAN / csrs-ppp will do L1 only data.  Typical results have errror ellipses in the 300-500 mm range.
> 
> Then your RINEX files must have some flaw in them.
> 
> NRCAN process both L1 and L2:
> 
>    OBS G L1C L2C C1C C2C
> 
> I get horizongal uncertainties of around a centimenter and vertical around 2cm:
> 
>    POS CRD  SYST        EPOCH          A_PRIORI         ESTIMATED       DIFF SIGMA(95%) CORRELATIONS
>    POS   X IGS14 19:301:62520      3558657.3400      3558658.2826     0.9426     0.0130  1.0000
>    POS   Y IGS14 19:301:62520       713469.6500       713470.3210     0.6710     0.0081  0.3067  1.0000
>    POS   Z IGS14 19:301:62520      5227269.8000      5227271.1311     1.3311     0.0133  0.8625  0.2978  1.0000
> 
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe    
> Never attribute to malice what can adequately be explained by incompetence.
> 
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