PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/28-21:27:30
G05     52.8           9.2                 8.5 +/-    5.25      24.2 +/-    5.25  0.220 / 0.290
G10     243.4          20.4               13.7 +/-    2.07      29.9 +/-    2.07  0.230 / 0.390
G13     62.5           33.9                9.6 +/-    1.31      15.5 +/-    1.31  0.050 / 0.050
G15     112.6          57.9                9.9 +/-    0.44      11.5 +/-    0.44  0.040 / 0.050
G16     302.8          15.9                7.7 +/-    1.44      18.8 +/-    1.44  0.100 / 0.430
G20     246.5          8.6                 4.8 +/-    3.11      13.7 +/-    3.11  0.110 / 0.410
G21     322.4          53.1               10.0 +/-    0.51      12.1 +/-    0.51  0.060 / 0.110
G26     274.9          18.9                9.4 +/-    1.54      21.3 +/-    1.54  0.070 / 0.100
G29     162.3          61.6               11.3 +/-    1.63      12.7 +/-    1.63  0.040 / 0.040