sat-nav lat/long

[alibongo]

Has anybody got the lat/long co-ordinates for the Houx Annexe roundabout? just got a new toy and I'm playing around with it lol 

[starbar]

You can try

Lat 47.95629 N
Long 0.22118 E

This was gottton off of autoroute so not sure how accurate, but I am sure you can see the skid marks on the island. 

Pete

[nickliv]

Google earth has it at;-

47.57.21.87N
0.13.14.68E
Elevation 172 feet.

[Paddy_NL]

Lat 47.95629 N
Long 0.22118 E

47.57.21.87N
0.13.14.68E

One of you might end up on Magny Cours, me thinks

[Lawnmower Man]

Lat 47.95629 N
Long 0.22118 E

47.57.21.87N
0.13.14.68E

One of you might end up on Magny Cours, me thinks

No Paddy. 
One is 47 Deg 57 Minutes the other is 47.95 Degrees they are pretty close.

t.

[nickliv]

Magny Cours is:-
N 46.51.51.02
E 3.09.50.07

Elevation 719 ft

(Google Earth again)

I've checked, and the Royal Observatory in Greenwich is  indeed at 0 degrees of latitude, so it's reasonably accurate.

[alibongo]

hey guys can you clarify which is H/A roundabout/campsite? cheers

[nickliv]

No Problem.

Halfway along the South Eastern side of HA there is a roundabout off which comes the Avenue Antares, which leads past the parking antares to the Mulsanne straight.

[Stu]

The POI's are available by following the link in the topic at the top of the help page.

[alibongo]

ta ever-so Im going to log the lat/long of the super markets, arnage virage etc into my sat nav so I will have no problem in getting to them, tho I expect the sat nav will not take into account the one way systems imposed on the weekend lol!!! cheers guys 

[Canada Phil]

No Paddy. 
One is 47 Deg 57 Minutes the other is 47.95 Degrees they are pretty close.

t.
[/quote]
 And who let the Metrics into the Lat/ Long equation Next we will have 100 minutes in an hour
Phil

[Leftie]

Lat 47.95629 N
Long 0.22118 E


47.57.21.87N
0.13.14.68E

Hmmmm, this poses a question of accurancy.

00.01,00 = 1 nautical mile. A nautical mile is longer than a statute mile, so an nm is not far short of 2km

Therefore they must be two seperate roundabouts 38.5miles apart or 77km!!!!!

As you can tell I have a bit of seafarer in me ( Ive heard most seaman jokes). sh*t, I've opened a can of worms here!

[Lawnmower Man]

Lat 47.95629 N
Long 0.22118 E

47.57.21.87N
0.13.14.68E

Hmmmm, this poses a question of accurancy.
00.01,00 = 1 nautical mile. A nautical mile is longer than a statute mile, so an nm is not far short of 2km
Therefore they must be two seperate roundabouts 38.5miles apart or 77km!!!!!
As you can tell I have a bit of seafarer in me ( Ive heard most seaman jokes). sh*t, I've opened a can of worms here!

No Lat 47.95629 N  47.95629 Degrees North.  Or 47 point 95629 Degrees.
0.95629  Degress is 57.38 Minutes Or 57 point 38 Minutes.
0.38 Minutes is 22.64 Seconds.
so Lat 47.95629 N  Is  Lat 47.57.22.64 

So 47.57.21.87N is pretty close to 47.57.22.64N.

I note that someome noted "i've checked, and the Royal Observatory in Greenwich is  indeed at 0 degrees of latitude, so it's reasonably accurate."

0 deg lat is the Equator.  I think they mean Long. 

t.

[alibongo]

This all sounds very technical

[Leftie]

0.95629  Degress is 57.38 Minutes Or 57 point 38 Minutes.
0.38 Minutes is 22.64 Seconds.

Am I missing something here?

Calcs should be based on 60.

1 deg Lat = 60 mins = 360 nautical miles
1 Min Lat = 60 secs = 1 nautical mile

Do not measure Longitude by scaling L/R or E/W, use vertical scale using Latitude.

In writing the possition down it must be accurate, otherwise how are the Rescue Services to find you?

GPS systems are not that accurate although sometimes they can record your possition with 10m. It all depends on US military involvements, ie, they reduce channels available.

I accept that the Lat/Long possitions may have been missinterpreted/ missrepresented.
From the figures shown, there is still a 38.5 nm difference.

However, I concede to the fact that I do rely on GPS when on open water but I do check occasionally with more mundane instruments such as a sextant etc. BUT NOT IN MY FRIGGING CAR. Can you imagine what the fuz will think?

Jerry