PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/04-09:42:40
G01     80.9           33.1                5.7 +/-    0.45       9.3 +/-    0.45  0.040 / 0.030
G07     132.0          37.7                6.9 +/-    0.87      10.4 +/-    0.87  0.040 / 0.020
G11     59.3           35.1                4.1 +/-    0.55       6.6 +/-    0.55  0.070 / 0.260
G13     284.8          37.9                4.6 +/-    1.07       7.0 +/-    1.07  0.070 / 0.250
G15     313.1          10.4               -9.2 +/-   12.16     -25.6 +/-   12.16  0.030 / 0.080
G17     221.2          63.4                7.7 +/-    0.78       8.5 +/-    0.78  0.030 / 0.070
G18     54.7           20.8                2.9 +/-    1.18       6.4 +/-    1.18  0.070 / 0.100
G19     218.6          30.2                5.9 +/-    1.43      10.3 +/-    1.43  0.090 / 0.120
G28     1.8            61.2                4.5 +/-    0.39       5.1 +/-    0.39  0.090 / 0.130
G30     123.0          71.6                7.0 +/-    0.83       7.3 +/-    0.83  0.090 / 0.110