PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/05-10:12:50
G01     123.0          14.8                4.8 +/-    1.52      12.0 +/-    1.52  0.030 / 0.040
G07     68.5           68.2                4.7 +/-    0.43       5.0 +/-    0.43  0.030 / 0.030
G08     46.1           32.8                4.0 +/-    0.96       6.6 +/-    0.96  0.160 / 0.290
G09     175.4          28.0                4.4 +/-    1.18       8.1 +/-    1.18  0.190 / 0.260
G11     110.4          38.0                6.8 +/-    0.62      10.2 +/-    0.62  0.110 / 0.320
G13     319.5          16.1                1.3 +/-    2.18       3.1 +/-    2.18  0.120 / 0.250
G17     199.8          22.0                5.4 +/-    1.65      11.2 +/-    1.65  0.030 / 0.030
G18     98.1           18.9                4.5 +/-    1.90      10.1 +/-    1.90  0.030 / 0.030
G28     283.9          55.2                2.4 +/-    2.54       2.8 +/-    2.54  0.100 / 0.210
G30     335.9          63.0                3.3 +/-    0.73       3.6 +/-    0.73  0.110 / 0.220