132
+90®
+80®
+40®
20®
40°
■60'
■80°
■90°
180° -160° -140° -120° -100° -80° -60° -40° -20» 0» +20» +40» +60» +80° +100» +120» +140» +160» +180»
Sixth - degree level curves of geoid heights at 10 -m intervals determined from 26,244 Baker - Nunn observations of II satellites.
Fig. 2
