PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/30-14:27:50
G02     47.7           43.1                4.9 +/-    0.40       6.8 +/-    0.40  0.060 / 0.060
G05     98.1           71.2                5.1 +/-    0.61       5.4 +/-    0.61  0.040 / 0.050
G12     186.5          46.2                5.9 +/-    1.76       7.9 +/-    1.76  0.120 / 0.460
G21     261.7          10.2               -7.2 +/-    9.87     -20.0 +/-    9.87  0.040 / 0.070
G25     252.7          59.0                3.8 +/-    0.67       4.3 +/-    0.67  0.040 / 0.060
G29     320.0          42.8                5.2 +/-    1.35       7.2 +/-    1.35  0.050 / 0.040