PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/10-20:42:50
G01     51.5           26.4               12.3 +/-    1.35      23.2 +/-    1.35  0.140 / 0.360
G06     177.6          24.1               18.6 +/-    1.00      37.1 +/-    1.00  0.120 / 0.330
G07     145.9          14.4               18.6 +/-    4.12      46.9 +/-    4.12  0.090 / 0.260
G11     45.4           17.4                9.4 +/-    1.83      22.1 +/-    1.83  0.100 / 0.330
G13     252.5          31.2               16.3 +/-    1.25      27.8 +/-    1.25  0.100 / 0.130
G15     285.6          15.8               10.8 +/-    2.43      26.4 +/-    2.43  0.090 / 0.120
G17     288.6          77.3               14.7 +/-    0.76      15.0 +/-    0.76  0.040 / 0.070
G19     243.6          57.3               15.4 +/-    0.90      18.0 +/-    0.90  0.040 / 0.070
G28     50.5           53.4               12.7 +/-    0.32      15.4 +/-    0.32  0.120 / 0.330
G30     148.7          42.0               16.2 +/-    1.60      22.8 +/-    1.60  0.190 / 0.340