PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/17-14:12:30
G02     69.4           25.2                5.7 +/-    1.60      11.0 +/-    1.60  0.080 / 0.090
G05     47.6           52.0                4.9 +/-    0.43       6.1 +/-    0.43  0.090 / 0.090
G12     181.8          19.4                7.4 +/-    1.78      16.4 +/-    1.78  0.080 / 0.190
G13     116.8          23.6                8.8 +/-    0.86      17.8 +/-    0.86  0.060 / 0.180
G15     158.7          21.7                8.5 +/-    0.80      17.9 +/-    0.80  0.130 / 0.220
G21     283.0          26.7                5.8 +/-    2.02      10.8 +/-    2.02  0.130 / 0.250
G25     215.6          39.6                7.2 +/-    1.48      10.6 +/-    1.48  0.030 / 0.040
G29     338.8          68.0                4.0 +/-    0.99       4.2 +/-    0.99  0.040 / 0.040