PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/07-16:57:50
G10     251.0          27.5               13.0 +/-    0.96      24.1 +/-    0.96  0.040 / 0.050
G13     53.0           29.3                9.1 +/-    0.93      16.2 +/-    0.93  0.040 / 0.050
G15     90.1           58.9               10.5 +/-    0.94      12.1 +/-    0.94  0.140 / 0.720
G16     295.7          15.3                9.0 +/-    3.13      22.2 +/-    3.13  0.130 / 0.670
G20     270.5          51.2               10.7 +/-    1.32      13.3 +/-    1.32  0.070 / 0.170
G21     337.0          61.6               10.5 +/-    0.94      11.8 +/-    0.94  0.060 / 0.160
G26     268.7          15.2               11.0 +/-    1.66      27.1 +/-    1.66  0.030 / 0.040
G29     164.2          49.0               12.4 +/-    1.44      15.8 +/-    1.44  0.030 / 0.040