PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-08:12:50
G01     115.5          20.4                7.1 +/-    1.60      15.4 +/-    1.60  0.040 / 0.030
G07     91.7           63.4                6.1 +/-    0.86       6.7 +/-    0.86  0.030 / 0.030
G08     43.0           25.8                4.0 +/-    0.50       7.6 +/-    0.50  0.030 / 0.030
G09     172.8          17.2                5.2 +/-    1.73      12.4 +/-    1.73  0.030 / 0.040
G11     99.3           41.4                7.3 +/-    0.56      10.5 +/-    0.56  0.080 / 0.190
G13     315.4          22.9                2.6 +/-    4.20       5.3 +/-    4.20  0.090 / 0.160
G17     201.9          30.7                5.7 +/-    1.49       9.8 +/-    1.49  0.060 / 0.170
G18     88.0           22.0                5.1 +/-    1.34      10.7 +/-    1.34  0.080 / 0.240
G28     298.3          58.2                4.3 +/-    0.73       5.0 +/-    0.73  0.120 / 0.250
G30     350.1          70.9                5.8 +/-    0.60       6.1 +/-    0.60  0.120 / 0.280