PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/31-12:43:00
G02     230.0          72.2                5.7 +/-    0.57       6.0 +/-    0.57  0.110 / 0.220
G05     175.2          10.7               -3.1 +/-   19.64      -8.5 +/-   19.64  0.090 / 0.310
G06     42.6           66.5                4.0 +/-    0.44       4.4 +/-    0.44  0.050 / 0.090
G12     321.0          46.0                4.4 +/-    1.31       5.8 +/-    1.31  0.070 / 0.110
G17     68.4           23.4                3.7 +/-    0.73       7.5 +/-    0.73  0.070 / 0.120
G19     54.0           40.2                4.6 +/-    0.91       6.7 +/-    0.91  0.100 / 0.090
G24     252.6          37.5                5.9 +/-    0.92       8.9 +/-    0.92  0.040 / 0.070