PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/09-05:12:50
G08     265.1          17.0                9.5 +/-    2.37      22.6 +/-    2.37  0.230 / 0.330
G10     66.3           57.2                4.4 +/-    0.43       5.2 +/-    0.43  0.290 / 0.470
G11     309.7          18.8                5.5 +/-    1.15      12.5 +/-    1.15  0.050 / 0.060
G14     269.2          65.4                4.5 +/-    0.79       4.9 +/-    0.79  0.040 / 0.060
G18     311.0          33.8                4.9 +/-    1.14       8.0 +/-    1.14  0.140 / 0.270
G20     92.7           44.3                5.4 +/-    0.75       7.3 +/-    0.75  0.130 / 0.290
G21     155.4          13.5                4.5 +/-    4.55      11.6 +/-    4.55  0.100 / 0.450
G27     229.8          14.0                6.9 +/-   12.92      17.5 +/-   12.92  0.080 / 0.370
G31     176.0          35.1                6.7 +/-    0.86      10.6 +/-    0.86  0.040 / 0.040
G32     354.1          72.0                4.9 +/-    0.46       5.1 +/-    0.46  0.030 / 0.030