PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-14:12:30
G02     208.7          41.1               10.2 +/-    0.93      14.6 +/-    0.93  0.040 / 0.080
G06     121.6          78.3                6.9 +/-    0.50       7.1 +/-    0.50  0.040 / 0.070
G12     314.0          27.0                5.2 +/-    1.30       9.7 +/-    1.30  0.070 / 0.110
G17     46.5           40.4                6.7 +/-    0.64       9.7 +/-    0.64  0.070 / 0.130
G19     11.8           61.3                5.6 +/-    0.67       6.3 +/-    0.67  0.060 / 0.100
G24     282.0          43.0                5.4 +/-    0.73       7.4 +/-    0.73  0.050 / 0.090
G28     111.7          24.7                8.5 +/-    1.43      16.8 +/-    1.43  0.040 / 0.030