PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/22-16:12:30
G02     24.3           61.5                5.2 +/-    0.82       5.9 +/-    0.82  0.040 / 0.050
G05     150.9          57.3                6.9 +/-    0.60       8.1 +/-    0.60  0.030 / 0.060
G06     51.9           17.9                4.2 +/-    0.67       9.7 +/-    0.67  0.030 / 0.040
G12     197.0          70.2                6.2 +/-    0.55       6.5 +/-    0.55  0.020 / 0.030
G19     95.3           15.8                6.6 +/-    1.28      16.1 +/-    1.28  0.070 / 0.110
G25     300.0          53.0                6.4 +/-    0.62       7.7 +/-    0.62  0.070 / 0.100
G29     304.2          24.5                7.2 +/-    2.04      14.2 +/-    2.04  0.040 / 0.070