PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/09-07:42:40
G01     97.3           29.7                5.1 +/-    0.95       9.0 +/-    0.95  0.040 / 0.040
G07     119.2          49.8                4.9 +/-    0.40       6.2 +/-    0.40  0.030 / 0.040
G08     41.8           11.7                0.7 +/-    2.39       1.9 +/-    2.39  0.030 / 0.040
G11     76.3           40.9                3.1 +/-    1.16       4.5 +/-    1.16  0.040 / 0.040
G13     302.9          32.3               -0.6 +/-    0.88      -1.0 +/-    0.88  0.060 / 0.030
G17     210.0          49.0                5.4 +/-    0.77       6.9 +/-    0.77  0.040 / 0.050
G19     211.8          22.6                6.2 +/-    3.07      12.9 +/-    3.07  0.260 / 0.200
G28     337.8          61.8                1.2 +/-    0.43       1.3 +/-    0.43  0.390 / 0.210
G30     74.9           79.0                3.4 +/-    1.08       3.4 +/-    1.08  0.080 / 0.090