13. Sistema de Coordenadas
Latitude: + (N) Latitude: + (N)
Longitude: - (W) Longitude: + (E)
EQUADOR
Latitude: - (S) Latitude: - (S)
Longitude: - (W) Longitude: + (E)
MERIDIANO DE
GREENWICH
14. Sistema de Referencia
Sistema Local Sistema Global
PSAD-56 WGS-84
a = 6378388 m a = 6378137 m
b = 6356911.9462 m b = 6356752.3141 m
a = 1/297 a = 1/298.25722
15. 67° 30’ W 67° 29’ 54” W
16° 29’ 47’’ S
16° 30’ S
WGS84 PSAD56