PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/26-21:28:00
G05     51.3           12.0                6.4 +/-    1.51      17.1 +/-    1.51  0.080 / 0.140
G10     240.7          17.7                9.3 +/-    3.04      21.7 +/-    3.04  0.290 / 0.130
G13     66.8           35.0                8.2 +/-    1.07      13.1 +/-    1.07  0.040 / 0.050
G15     119.5          56.1                7.7 +/-    0.68       9.0 +/-    0.68  0.050 / 0.060
G16     306.3          15.3                6.4 +/-    1.85      15.9 +/-    1.85  0.100 / 0.430
G20     244.4          7.1                 3.6 +/-    2.60      10.5 +/-    2.60  0.090 / 0.390
G21     318.7          50.6                6.7 +/-    0.64       8.4 +/-    0.64  0.060 / 0.100
G26     278.6          19.8                7.7 +/-    1.88      17.0 +/-    1.88  0.060 / 0.120
G29     160.6          65.9                6.6 +/-    0.36       7.2 +/-    0.36  0.030 / 0.050