PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/03-08:27:50
G01     119.3          17.7                4.7 +/-    0.86      10.9 +/-    0.86  0.110 / 0.390
G07     81.8           65.9                5.8 +/-    0.64       6.3 +/-    0.64  0.130 / 0.430
G08     44.3           29.6                2.4 +/-    0.83       4.3 +/-    0.83  0.030 / 0.030
G09     173.1          21.1                4.7 +/-    1.37      10.0 +/-    1.37  0.030 / 0.030
G11     105.1          40.0                6.2 +/-    1.04       9.0 +/-    1.04  0.030 / 0.040
G13     317.6          19.6                3.5 +/-    2.70       7.7 +/-    2.70  0.030 / 0.040
G17     200.8          26.2                4.0 +/-    1.08       7.6 +/-    1.08  0.040 / 0.120
G18     92.7           20.6                5.6 +/-    1.42      12.2 +/-    1.42  0.050 / 0.080
G28     290.6          56.6                6.1 +/-    0.84       7.1 +/-    0.84  0.040 / 0.060
G30     342.7          67.3                3.3 +/-    0.77       3.5 +/-    0.77  0.040 / 0.060