Distance between the 2 poles= zero.zero meters
@bill93?ÿ There is nothing wrong with Mr Lindell's statement... It is correct.?ÿ Its close to 1/2 of a?ÿarshin ;?ÿBut we still don't know what it is....
@bill93?ÿ?ÿyou said "And a steel tape kept on a reel isn't going to hang straight for dipping" Well I guess you never heard of a plumb bob? Go to eba...
@mathteacher?ÿ ?ÿMT?ÿ I also have Ballou and Steen book. Had to go down to my library to double check. I have also learned the?ÿ hard way about lendi...
@mathteacher?ÿ I have many book on Spherical Trigonometry but the first one I used in H.S. (1959 or 1960) was Plane and Spherical Trigonometry by Kel...
@geeoddmike?ÿ I would like to point out that Vincenty's?ÿ method of the Direct and Inverse solution for the Geodetic distance and Azimuth came from R...
Larry Scott;?ÿ What type of data were you getting from the USNO (be specific ). Thanks and?ÿHappy Thanksgiving. ?ÿ John Nolton
andrewm;?ÿI have one more question which I left out of my above post. It looks like this park is near level (with the track and base-ball fields. I a...
andream; as you say your equipment is no good enough for the task. At least a 1 second inst. with a +/- 1mm edm might be what you need. Do you have s...
@ekloost?ÿ Eric my notes are how to adjust the instruments constants. The manual is wrong in some places on how to do this. There is at least one per...
holy cow,?ÿ What year was this done?
@geeoddmike?ÿ I think there is a lot more to the problem than NGS giving geodetic coordinates to 0.00001 places and?ÿ transforming them to X,Y,Z coor...
@mathteacher?ÿ MT, most people (almost all) just enter the numbers NGS gives and use what the computer spits out and never worry(or think) about thin...
@bill93?ÿ It looks like you don't read very well also. Your equation of [100 cos(Lat.)] = long. distance is very crude. As I have pointed out if you ...
e^2 is the square of the 1st eccentricity of the ellipsoid and for GRS80 = 0.0066943800229034157495749485862893 + round where you like. ?ÿ JOHN NOL...
@bill93 Sorry Bill93 but your equation of?ÿ 100 x cos (lat) for long. is NOT CORRECT. Use 101.45 and even better would be?ÿ 101.57?ÿ The 101.57 woul...
@mightymoe The distance along a meridian does change as the Latitude increases from the equator to the pole. This can be found in most basic geodesy...
@mike-marks I have used Trig levels with great success and had my own procedures(1963)well before others did (NGS etc.) 6 years ago (2014) NGS came ...