A And ∆F Of Frequently Used Datums - Magellan MobileMapper - GPS Software User Manual

Calculation example:
a
6 378 137
1/f
298.257 223 563 297
∆a
- 251 m
f
3.352 810 665 x 10
WGS 84
f
3.367 003 367 x 10
Local
∆f
-- 0.014 192 702 x 10
10 000 x ∆f
- 0.141 927 02
∆a and ∆f of Frequently Used Datums
Name
Airy
Australian National
Bessel 1841
Bessel 1841 (Nambia) 6377483.865 299.1528128
Clarke 1866
Clarke 1880
Everest
Fischer 1960 (Mercury) 6378166.0
Fischer 1968
GRS 1967
GRS 1980
Helmert 1906
Hough
International
Krassovsky
Modified Airy
Modified Everest
Modified Fischer 1960 6378155.0
South American 1969
WGS 60
WGS 66
WGS 72
WGS 84
Local
WGS 84
Datum
6 378 388
-3
-3
-3
a
6377563.396 299.3249646
6378160.0 298.25
6377397.155 299.1528128
6378206.4 294.9786982
6378249.145 293.465
6377276.345 300.8017
298.3
6378150.0 298.3
6378160.0 298.247167427 -23.0
6378137.0 298.257222101 0.0
6378200.0 298.3
6378270.0 297.0
6378388.0 297.0
6378245.0 298.3
6377340.189 299.3249646
6377304.063 300.8017
298.3
6378160.0 298.25
6378165.0 298.3
6378145.0 298.25
6378135.0 298.26
6378137.0 298.257223563 0.0
Complete the fields below on
the receiver screen using the
values of ∆a and 10000x∆f, be-
low, left):
Delta A (meters)
Delta F (X10,000)
1/f Da
573.604 0.11960023
-23.0 -0.00081204
739.845 0.10037483
653.135 0.10037483
-69.4 -0.37264639
-112.145 -0.54750714
860.655 0.28361368
-29.0 0.00480795
-13.0 0.00480795
-0.00113048
-0.00000016
-63.0 0.00480795
-133.0 -0.14192702
-251.0 -0.14192702
-108.0 0.00480795
796.811 0.11960023
832.937 0.28361368
-18.0 0.00480795
-23.0 -0.00081204
-28.0 0.00480795
-8.0 -0.00081204
2.0 0.0003121057
0.0
Df x 10 000
81