Re: Coordinates of AIS targets

[Gary E. Miller]

Yo Владимир!

On Sun, 7 May 2023 22:56:20 +0300
Владимир Калачихин <v.kalachikhin@gmail.com> wrote:

> 07.05.2023 22:29, Gary E. Miller пишет:
> > Odd, I'd need to see your raw AIS to make a gues.  
> 
> In attachment.


Here is what you say you see:

07.05.2023 13:45, Владимир Калачихин пишет:
> {"class":"AIS","device":"tcp://localhost:2222","type":27,"repeat":0,"mmsi":230941940,"scaled":false,"status":5,"accuracy":false,"lon":14954,"lat":36096,"speed":0,"course":31,"raim":false,"gnss":true}
> {"class":"AIS","device":"tcp://localhost:2222","type":18,"repeat":0,"mmsi":230108270,"scaled":false,"reserved":0,"speed":0,"accuracy":false,"lon":14977300,"lat":36102730,"course":1630,"heading":163,"second":0,"regional":0,"cs":true,"display":true,"dsc":false,"band":false,"msg22":false,"raim":false,"radio":917510}

Did you forget to ask for "scaling"?

When I run your test file I get:

{"class":"AIS","device":"stdin","type":27,"repeat":0,"mmsi":230298000,"scaled":true,"status":"Moored","accuracy":false,"lon":25.0,"lat":60.2,"speed":0,"course":26,"raim":false,"gnss":true}
{"class":"AIS","device":"stdin","type":18,"repeat":0,"mmsi":230086910,"scaled":true,"reserved":0,"speed":0.0,"accuracy":false,"lon":24.924937,"lat":60.160742,"course":312.1,"heading":312,"second":0,"regional":0,"cs":true,"display":true,"dsc":false,"band":false,"msg22":false,"raim":false,"radio":917510}

Is that the expected coordinates?

I do see the precision on the type 27 is way too low.


RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
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