PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-07:43:10
G01     54.7           27.7                3.9 +/-    1.56       7.1 +/-    1.56  0.040 / 0.050
G06     178.0          18.6                5.2 +/-    4.48      11.8 +/-    4.48  0.030 / 0.040
G07     143.3          18.4                5.8 +/-    0.73      13.2 +/-    0.73  0.110 / 0.250
G11     47.3           23.7                4.0 +/-    1.91       8.0 +/-    1.91  0.130 / 0.250
G13     256.6          34.8                8.5 +/-    0.78      13.5 +/-    0.78  0.040 / 0.050
G15     288.8          16.7                2.7 +/-    1.80       6.5 +/-    1.80  0.040 / 0.060
G17     272.0          78.3                7.4 +/-    0.51       7.6 +/-    0.51  0.130 / 0.290
G19     236.3          56.4                7.1 +/-    2.09       8.3 +/-    2.09  0.110 / 0.220
G28     27.9           59.4                6.7 +/-    0.80       7.6 +/-    0.80  0.030 / 0.020
G30     147.0          51.8                8.2 +/-    0.57      10.1 +/-    0.57  0.030 / 0.020