In message <[email protected]>, Magnus Danielson writes: >[email protected] skrev: >>> If you are in Scandinavia, the GPS birds will not spend much time (if >>> any?) to the north of you. Slide 12 of >>> http://web.ics.purdue.edu/~ecalais/teaching/geodesy/Satellite_orbits.pdf >>> suggests that the most northerly orbital point is at the latitude of >>> Denmark. > >> With a decent antenna siting you see plenty of SVs to the north.
Just to clarify: At my latitude in Denmark, we just barely see the sats from the other siden skim over the horizon, nowhere nearly high enough to clear the mask angle. Once you get just a little bit further north, like Magnus is, the sats do clear the mask angle and contribute gainfully to the solution. I have heard rumours, but not seen it confirmed, that Northern Norway and Greenland has some of the most amazing DOP's seen anywhere on the planet because all their sats are around them, rather than overhead. Poul-Henning -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [email protected] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
