PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/16-11:42:30
G02     235.6          75.0                5.9 +/-    0.44       6.1 +/-    0.44  0.220 / 0.240
G05     173.8          13.2                5.0 +/-    3.64      13.0 +/-    3.64  0.180 / 0.210
G06     41.1           64.9                4.5 +/-    0.40       4.9 +/-    0.40  0.070 / 0.070
G12     321.2          48.2                4.2 +/-    0.55       5.4 +/-    0.55  0.070 / 0.080
G17     70.2           22.2                4.0 +/-    1.27       8.3 +/-    1.27  0.030 / 0.040
G19     56.3           38.8                3.5 +/-    1.49       5.3 +/-    1.49  0.030 / 0.040
G24     249.6          36.3                6.7 +/-    1.93      10.3 +/-    1.93  0.060 / 0.110
G25     316.4          11.3               -9.8 +/-   25.79     -26.6 +/-   25.79  0.060 / 0.110