The database of RWs coordinates
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London, a military base near London, Sydney, but here's Brisbane - the error is great. Why is it?
239398,2434,"EGLL",12001,148,"ASP",1,0,"09R",51.4649,-0.486772,75,90,1013,"27L",51.465,-0.434075,77,270,
239491,2486,"EGUB",4782,100,"ASP",0,1,"06",51.6149,-1.10233,197,56,,"24",51.6222,-1.08483,226,236,
233266,27145,"YSSY",8300,148,"ASP",1,0,"07",-33.9437,151.164,16,74,,"25",-33.9375,151.19,20,254,324
233170,26901,"YBBN",5577,98,"ASP",1,0,"14",-27.3578,153.124,11,146.7,197,"32",-27.3706,153.133,9,326.7,197
I'm sure I'm not alone in being confused by your series of posts, both in this thread and in various accident threads (MH370, Katmandu Dash-8, Syrian An-26, Iran ATR, etc).
Could you explain
a) what you are trying to show with the above data
b) where that data is from
c) what reference source you are comparing it against
d) how it supports your assertion that Google Earth is inaccurate
I'm sorry if that sounds harsh, but I'd really like to understand what point you are trying to make.
I can not agree. Here are some examples:
London, a military base near London, Sydney, but here's Brisbane - the error is great. Why is it?
239398,2434,"EGLL",12001,148,"ASP",1,0,"09R",51.4649,-0.486772,75,90,1013,"27L",51.465,-0.434075,77,270,
239491,2486,"EGUB",4782,100,"ASP",0,1,"06",51.6149,-1.10233,197,56,,"24",51.6222,-1.08483,226,236,
233266,27145,"YSSY",8300,148,"ASP",1,0,"07",-33.9437,151.164,16,74,,"25",-33.9375,151.19,20,254,324
233170,26901,"YBBN",5577,98,"ASP",1,0,"14",-27.3578,153.124,11,146.7,197,"32",-27.3706,153.133,9,326.7,197
London, a military base near London, Sydney, but here's Brisbane - the error is great. Why is it?
239398,2434,"EGLL",12001,148,"ASP",1,0,"09R",51.4649,-0.486772,75,90,1013,"27L",51.465,-0.434075,77,270,
239491,2486,"EGUB",4782,100,"ASP",0,1,"06",51.6149,-1.10233,197,56,,"24",51.6222,-1.08483,226,236,
233266,27145,"YSSY",8300,148,"ASP",1,0,"07",-33.9437,151.164,16,74,,"25",-33.9375,151.19,20,254,324
233170,26901,"YBBN",5577,98,"ASP",1,0,"14",-27.3578,153.124,11,146.7,197,"32",-27.3706,153.133,9,326.7,197
a) what you are trying to show with the above data
b) where that data is from
c) what reference source you are comparing it against
d) how it supports your assertion that Google Earth is inaccurate
I'm sorry if that sounds harsh, but I'd really like to understand what point you are trying to make.
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The MH370 disaster probably occurred because of the jet stream. It has nothing to do with datums.
The database is taken from the site Open data @ OurAirports
Brisbane https://www.airservicesaustralia.com...nt/dah/dah.pdf section 18, Australia. The result is the same (Brisbane).
a) so you can easily check - just copy the coordinates eg 51.4649, -0.486772 into the google map window (put a space after the comma, otherwise there will be an error format)
b) see above
с) I compare the datum WGS-84 with local (ED50, PUK42 etc)
d) I did not say this, quite the opposite.
All troubles in the absence of visibility, but if the pilot stubbornly wants to land the aircraft only on the GPS, he must know what he can expect.
The database is taken from the site Open data @ OurAirports
Brisbane https://www.airservicesaustralia.com...nt/dah/dah.pdf section 18, Australia. The result is the same (Brisbane).
a) so you can easily check - just copy the coordinates eg 51.4649, -0.486772 into the google map window (put a space after the comma, otherwise there will be an error format)
b) see above
с) I compare the datum WGS-84 with local (ED50, PUK42 etc)
d) I did not say this, quite the opposite.
All troubles in the absence of visibility, but if the pilot stubbornly wants to land the aircraft only on the GPS, he must know what he can expect.
The thresholds don't alignment with Google maps. I will try to check Europe Datum 1950.
When the coordinates was re-calculated from local datums to WGS84, may be coordinate Z (altitude) was omited ?
The accuracy is still dependent on the source data. The last time I used some data from the Russian AIP, I found Google Earth & The World Aeronautical Database (online) far more accurate...
The MH370 disaster probably occurred because of the jet stream. It has nothing to do with datums.
The database is taken from the site Open data @ OurAirports
Brisbane https://www.airservicesaustralia.com...nt/dah/dah.pdf section 18, Australia. The result is the same (Brisbane).
a) so you can easily check - just copy the coordinates eg 51.4649, -0.486772 into the google map window (put a space after the comma, otherwise there will be an error format)
b) see above
с) I compare the datum WGS-84 with local (ED50, PUK42 etc)
d) I did not say this, quite the opposite.
All troubles in the absence of visibility, but if the pilot stubbornly wants to land the aircraft only on the GPS, he must know what he can expect.
The database is taken from the site Open data @ OurAirports
Brisbane https://www.airservicesaustralia.com...nt/dah/dah.pdf section 18, Australia. The result is the same (Brisbane).
a) so you can easily check - just copy the coordinates eg 51.4649, -0.486772 into the google map window (put a space after the comma, otherwise there will be an error format)
b) see above
с) I compare the datum WGS-84 with local (ED50, PUK42 etc)
d) I did not say this, quite the opposite.
All troubles in the absence of visibility, but if the pilot stubbornly wants to land the aircraft only on the GPS, he must know what he can expect.
Do you have any evidence that stubborn pilots are actually using this data for precision approaches?
I'm struggling to see how this is a real-world (npi) problem.
