PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-04:12:40
G01     113.0          21.9               10.1 +/-    1.42      21.2 +/-    1.42  0.030 / 0.040
G07     98.1           60.7                8.5 +/-    0.57       9.6 +/-    0.57  0.030 / 0.030
G08     42.3           23.2                4.5 +/-    2.17       9.2 +/-    2.17  0.030 / 0.030
G09     174.3          17.5                9.7 +/-    1.32      22.8 +/-    1.32  0.030 / 0.020
G11     95.3           42.0                8.3 +/-    0.73      11.7 +/-    0.73  0.060 / 0.070
G13     313.8          24.9                3.6 +/-    1.73       7.0 +/-    1.73  0.090 / 0.070
G17     202.3          34.0                9.4 +/-    0.83      15.3 +/-    0.83  0.130 / 0.180
G28     301.6          58.6                6.1 +/-    1.35       7.0 +/-    1.35  0.090 / 0.200
G30     356.2          73.2                7.5 +/-    1.07       7.8 +/-    1.07  0.060 / 0.040