PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/02-18:42:50
G02     78.3           17.7               15.2 +/-    0.88      35.4 +/-    0.88  0.090 / 0.180
G05     44.7           42.7               14.4 +/-    1.15      20.1 +/-    1.15  0.120 / 0.160
G12     180.3          10.1               18.1 +/-    1.95      50.4 +/-    1.95  0.170 / 0.300
G13     108.8          30.2               17.4 +/-    1.66      30.4 +/-    1.66  0.170 / 0.310
G15     149.8          31.7               18.3 +/-    1.20      31.0 +/-    1.20  0.070 / 0.130
G18     227.2          21.7               16.6 +/-    1.46      35.0 +/-    1.46  0.060 / 0.130
G20     259.4          84.7               16.1 +/-    0.49      16.2 +/-    0.49  0.060 / 0.170
G21     291.5          33.0               13.6 +/-    1.09      22.5 +/-    1.09  0.060 / 0.180
G25     211.0          30.7               16.7 +/-    0.68      28.8 +/-    0.68  0.040 / 0.040
G29     11.0           82.5               14.5 +/-    0.48      14.6 +/-    0.48  0.040 / 0.040