PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/10-09:28:00
G01     75.5           33.3                4.8 +/-    0.91       7.8 +/-    0.91  0.030 / 0.030
G07     135.0          33.5                7.6 +/-    0.55      12.4 +/-    0.55  0.030 / 0.020
G11     55.5           32.3                3.6 +/-    0.87       6.0 +/-    0.87  0.040 / 0.060
G13     279.0          38.1                4.1 +/-    1.45       6.1 +/-    1.45  0.040 / 0.090
G15     309.4          12.0                2.9 +/-    1.51       7.6 +/-    1.51  0.060 / 0.110
G17     227.2          67.8                6.0 +/-    0.83       6.5 +/-    0.83  0.060 / 0.100
G18     50.7           18.9                2.9 +/-    0.69       6.7 +/-    0.69  0.070 / 0.180
G19     221.2          34.5                7.2 +/-    1.51      11.5 +/-    1.51  0.070 / 0.180
G28     10.1           60.5                3.7 +/-    0.66       4.2 +/-    0.66  0.050 / 0.110
G30     130.7          67.5                6.6 +/-    0.62       7.1 +/-    0.62  0.050 / 0.120