PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/02-22:27:50
G02     89.1           10.4                7.8 +/-    3.04      21.5 +/-    3.04  0.060 / 0.110
G05     46.0           25.6                6.3 +/-    0.92      12.2 +/-    0.92  0.050 / 0.110
G13     88.9           35.5                8.1 +/-    0.61      12.7 +/-    0.61  0.090 / 0.350
G15     141.3          43.8               10.2 +/-    0.88      14.0 +/-    0.88  0.090 / 0.390
G20     236.3          6.7                 8.2 +/-    2.30      24.2 +/-    2.30  0.200 / 0.330
G21     303.1          39.7                8.2 +/-    0.97      12.0 +/-    0.97  0.180 / 0.450
G25     204.2          18.9                9.0 +/-    1.01      20.3 +/-    1.01  0.040 / 0.080
G26     296.4          20.8               10.1 +/-    2.03      21.7 +/-    2.03  0.040 / 0.100
G29     133.7          85.2                5.8 +/-    0.67       5.9 +/-    0.67  0.030 / 0.030