PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-00:13:00
G05     47.8           19.4                7.6 +/-    0.84      16.9 +/-    0.84  0.060 / 0.150
G13     80.2           36.4               11.0 +/-    0.75      17.1 +/-    0.75  0.060 / 0.150
G15     132.4          49.5               13.6 +/-    0.57      17.2 +/-    0.57  0.130 / 0.390
G16     315.9          12.0               10.0 +/-    2.73      26.6 +/-    2.73  0.130 / 0.400
G20     242.3          23.0               14.7 +/-    1.05      30.1 +/-    1.05  0.050 / 0.090
G21     309.2          44.0               11.1 +/-    1.05      15.1 +/-    1.05  0.060 / 0.080
G25     201.0          13.5               13.1 +/-    3.28      33.7 +/-    3.28  0.140 / 0.310
G26     289.5          21.1               12.5 +/-    2.01      26.7 +/-    2.01  0.110 / 0.280
G29     152.8          77.6               11.5 +/-    0.60      11.7 +/-    0.60  0.050 / 0.140