Results of Problem WN 51 - 21 May 1968 
station 
NAME 
THULE, GREENLAND 
BELTSVILLE.MD. 
MOSES LAKE, WASH. 
SHEMYA, ALASKA 
TROMSO, NORWAY 
LAJES AFB, AZORES 
PARAMARIBO, SURINAM 
QUITO, ECUADOR 
MAUI, HAWAII 
WAKE ISLAND 
KANOYA, JAPAN 
MASHHAD, IRAN 
CATANIA, SICILY 
VILLA DOLORES, ARGENTINA 
EASTER ISLAND, CHILE 
PAGOPAGO, AMERICAN SAMOA 
THURSDAY IS., AUSTRALIA 
INVERCARGILL, N.Z. 
REVILLA ISLAND 
PITCAIRN ISLAND 
CERRO SOMBRERO, CHILE 
CHRISTMAS ISLAND 
CULGOORA, AUSTRALIA 
HOHEN PEISSEN, GERMANY 
WRIGHTWOOD, CALIFORNIA 
ELLIPSOID 
SEMI- 
AXES (M) 
A 
B 
C 
12.13 
6.42 
5.84 
11.54 
5.76 
5.32 
1 1.27 
5.5 7 
5.26 
20.80 
14.22 
7.53 
12.80 
10.32 
6.43 
16.06 
11 .54 
9.42 
24.20 
18.92 
1 1.28 
17.86 
14.75 
8.82 
1 1.63 
8.18 
5.92' 
16.06 
8 .54 
7.72 
26.04 
17 .81 
11.48 
20.85 
14.01 
9.62 
16.59 
12.44 
7.38 
26.25 
14.8 1 
1334 
19.63 
II .00 
8.1 1 
15.02 
8.51 
7.54 
23.92 
15.33 
10.37 
24.40 
14.39 
1 1.31 
10.98 
6.81 
5.45 
18.65 
9.97 
8.28 
31.53 
16.82 
14.57 
1 1.92 
8.59 
6.90 
24.63 
15.08 
12.29 
14.63 
12.91 
7.09 
1 1.29 
7.18 
5 70