PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-22:42:50
G01     75.0           33.3                8.7 +/-    0.74      14.3 +/-    0.74  0.090 / 0.250
G07     135.3          34.7               12.5 +/-    1.53      20.0 +/-    1.53  0.080 / 0.220
G11     57.9           34.8                9.0 +/-    0.88      14.3 +/-    0.88  0.080 / 0.080
G13     279.6          37.6               10.3 +/-    0.96      15.6 +/-    0.96  0.090 / 0.100
G15     305.2          14.8                6.1 +/-    2.03      15.2 +/-    2.03  0.060 / 0.070
G17     227.2          61.9               10.6 +/-    1.18      11.9 +/-    1.18  0.060 / 0.070
G18     52.4           20.2                8.9 +/-    7.07      19.6 +/-    7.07  0.030 / 0.030
G19     221.8          38.4               12.5 +/-    1.92      18.7 +/-    1.92  0.030 / 0.030
G28     14.2           59.9                9.9 +/-    0.91      11.2 +/-    0.91  0.030 / 0.050
G30     131.5          62.5               12.3 +/-    0.38      13.7 +/-    0.38  0.040 / 0.050