PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/12-01:27:30
G01     223.4          14.2                6.8 +/-    2.15      17.2 +/-    2.15  0.030 / 0.040
G03     278.4          68.5                3.9 +/-    1.41       4.1 +/-    1.41  0.030 / 0.050
G09     296.5          10.3              -15.9 +/-   13.30     -44.0 +/-   13.30  0.040 / 0.080
G14     90.7           20.9                5.2 +/-    2.31      11.1 +/-    2.31  0.040 / 0.070
G16     151.4          46.1                8.1 +/-    0.83      10.8 +/-    0.83  0.290 / 0.370
G22     210.6          67.9                7.1 +/-    0.56       7.6 +/-    0.56  0.220 / 0.490
G23     309.5          39.0                4.3 +/-    1.05       6.4 +/-    1.05  0.040 / 0.080
G26     96.1           56.0                4.8 +/-    0.78       5.6 +/-    0.78  0.050 / 0.070
G31     45.5           32.4                2.4 +/-    1.46       4.0 +/-    1.46  0.090 / 0.280