PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/19-16:12:30
G10     252.6          28.8               10.0 +/-    1.46      17.9 +/-    1.46  0.040 / 0.060
G13     51.3           28.2                7.7 +/-    0.59      14.1 +/-    0.59  0.040 / 0.050
G15     85.3           58.3                9.8 +/-    0.47      11.4 +/-    0.47  0.130 / 0.540
G16     294.2          15.1                5.8 +/-    2.60      14.4 +/-    2.60  0.130 / 0.540
G20     273.1          52.4               10.2 +/-    0.90      12.5 +/-    0.90  0.040 / 0.060
G21     340.4          63.2                7.9 +/-    0.49       8.7 +/-    0.49  0.030 / 0.050
G26     267.4          14.5                6.8 +/-    2.05      17.1 +/-    2.05  0.070 / 0.170
G29     164.4          46.6                9.9 +/-    1.17      13.0 +/-    1.17  0.060 / 0.170