PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/01-02:12:50
G01     90.3           31.8                8.0 +/-    0.45      13.4 +/-    0.45  0.170 / 0.360
G07     125.4          45.7                8.5 +/-    1.11      11.3 +/-    1.11  0.130 / 0.430
G11     71.2           40.9                6.0 +/-    0.64       8.6 +/-    0.64  0.040 / 0.060
G13     295.6          35.3                6.6 +/-    1.28      10.5 +/-    1.28  0.030 / 0.070
G15     314.9          10.5               -5.6 +/-   17.71     -15.6 +/-   17.71  0.100 / 0.090
G17     214.8          52.7                9.5 +/-    1.10      11.6 +/-    1.10  0.090 / 0.110
G19     214.6          27.6                7.5 +/-    3.18      13.9 +/-    3.18  0.040 / 0.050
G28     350.5          61.7                4.1 +/-    0.55       4.6 +/-    0.55  0.050 / 0.050
G30     109.4          72.2                7.5 +/-    1.55       7.9 +/-    1.55  0.070 / 0.110