PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/14-03:12:30
G05     47.4           19.6                6.3 +/-    1.37      14.0 +/-    1.37  0.190 / 0.290
G13     81.0           35.6               11.0 +/-    1.00      17.3 +/-    1.00  0.220 / 0.410
G15     128.9          49.5               13.3 +/-    0.92      16.9 +/-    0.92  0.040 / 0.080
G20     244.2          33.5               13.5 +/-    1.56      22.0 +/-    1.56  0.040 / 0.100
G21     309.9          44.6               11.1 +/-    1.47      15.1 +/-    1.47  0.050 / 0.120
G25     201.5          14.8               13.8 +/-    1.43      34.4 +/-    1.43  0.050 / 0.130
G26     294.3          19.5               10.2 +/-    1.57      22.7 +/-    1.57  0.030 / 0.050
G29     145.4          74.2               13.1 +/-    0.61      13.6 +/-    0.61  0.030 / 0.050