From: Geoffrey Kolbe (no email)
Date: Sat Sep 10 2005 - 17:08:15 EDT
At 18:13 10/09/2005, Willem Piccer wrote:
>I was just re-reading the discussion on the problems Asbjorn had and I
>wonder if the whole problem is not caused by the gps position used.
>Especially because he states that the observation height is always less
>than the calculated height.
>I have the feeling that the chart datum chosen plays a role
>
>Willem Piccer
The latitude and longitude which Asbjorn's GPS deduces for Trondheim (where
Asbjorn says he took the sights) agree with that given in various atlas's
and gazetteers that I have to less than a minute. A glance at the atlas
shows that a position five miles North and East of Trondheim (where Asbjorn
would have to be to get an observed altitude 5 minutes less than
calculated) would put him in Trondheims Fjord....!
Asbjorn would appear to be where he thinks he is.
Geoffrey Kolbe
|