PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-01:28:10
G10     247.6          24.1               14.5 +/-    1.32      28.8 +/-    1.32  0.140 / 0.320
G13     57.0           31.8                9.9 +/-    1.61      16.8 +/-    1.61  0.120 / 0.280
G15     97.0           58.5               12.6 +/-    0.99      14.5 +/-    0.99  0.030 / 0.050
G16     298.1          15.9                8.2 +/-    1.76      20.0 +/-    1.76  0.040 / 0.040
G20     260.8          41.6               12.1 +/-    2.90      17.2 +/-    2.90  0.030 / 0.030
G21     328.4          57.1               10.7 +/-    0.51      12.4 +/-    0.51  0.030 / 0.040
G26     269.8          17.1               12.0 +/-    1.39      28.3 +/-    1.39  0.060 / 0.110
G29     164.2          55.1               12.0 +/-    0.57      14.3 +/-    0.57  0.070 / 0.110