PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/06-15:13:00
G05     48.8           17.4                5.1 +/-    1.88      11.9 +/-    1.88  0.110 / 0.140
G10     236.2          11.7               -1.5 +/-   32.26      -4.0 +/-   32.26  0.110 / 0.130
G13     77.2           37.2                5.9 +/-    0.49       9.0 +/-    0.49  0.040 / 0.030
G15     121.8          52.3                7.8 +/-    0.88       9.5 +/-    0.88  0.040 / 0.030
G18     246.2          43.9                7.2 +/-    2.68       9.8 +/-    2.68  0.090 / 0.160
G20     23.7           68.7                7.0 +/-    0.53       7.4 +/-    0.53  0.080 / 0.120
G21     317.5          51.1                6.4 +/-    1.11       7.9 +/-    1.11  0.060 / 0.070
G25     199.1          10.5                7.8 +/-    4.31      21.6 +/-    4.31  0.060 / 0.080
G26     290.2          19.5                4.3 +/-    0.77       9.5 +/-    0.77  0.040 / 0.050
G29     152.7          67.3                8.1 +/-    0.38       8.7 +/-    0.38  0.040 / 0.040