Azimuth algorithm test (GPAC vs. ROPP 6.1)

Columns:
 lat, lon, azimuth_gpac, azimuth_ropp
 
 First sample from 20130326_231339_M01_1040483397:
  -71.602184168200  -41.127557471952  200.754861350170   20.754822610343
 
 First sample from 20130326_235321_M01_2020483400:
   81.324888936518   66.875700112222   99.626777671567  279.626782419337
 
 First sample from 20130326_235357_M01_1220483400:
   45.734675067344  168.842783895821  329.689742510120  149.689892318159
 
 First sample from 20130326_235540_M01_1110483400:
   40.807053668136  116.136430783891    5.213456169362  185.213427006587
 
 Tangent point on the north pole:
   90.000000000000    0.000000000000    0.000000000000    0.000000000000
 
 Tangent point on the south pole:
  -90.000000000000    0.000000000000  180.000000000000    0.000000000000
 
 GNSS-LEO direction straight north:
   -0.000000000000    0.000000000000    0.000000000000    0.000000000000
 
 GNSS-LEO direction straight south:
    0.000000000000    0.000000000000  180.000000000000    0.000000000000
 

Azimuth algorithm test (GPAC vs. 'DMI ROPP')

Columns:
 lat, lon, azimuth_gpac, azimuth_ropp
 
 First sample from 20130326_231339_M01_1040483397:
  -71.602184168200  -41.127557471952  200.754861350170  200.754822610343
 
 First sample from 20130326_235321_M01_2020483400:
   81.324888936518   66.875700112222   99.626777671567   99.626782419337
 
 First sample from 20130326_235357_M01_1220483400:
   45.734675067344  168.842783895821  329.689742510120  329.689892318159
 
 First sample from 20130326_235540_M01_1110483400:
   40.807053668136  116.136430783891    5.213456169362    5.213427006587
 
 Tangent point on the north pole:
   90.000000000000    0.000000000000    0.000000000000    0.000000000000
 
 Tangent point on the south pole:
  -90.000000000000    0.000000000000  180.000000000000  180.000000000000
 
 GNSS-LEO direction straight north:
   -0.000000000000    0.000000000000    0.000000000000    0.000000000000
 
 GNSS-LEO direction straight south:
    0.000000000000    0.000000000000  180.000000000000  180.000000000000
