PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/11-16:12:50
G01     120.0          17.3               10.8 +/-    1.40      25.3 +/-    1.40  0.030 / 0.040
G07     77.5           67.3               10.7 +/-    0.48      11.5 +/-    0.48  0.030 / 0.040
G08     45.7           33.4                8.8 +/-    0.47      14.4 +/-    0.47  0.020 / 0.030
G09     176.7          26.5               11.8 +/-    3.27      22.3 +/-    3.27  0.020 / 0.040
G11     108.5          39.6               11.8 +/-    0.55      17.3 +/-    0.55  0.040 / 0.090
G13     318.1          18.6               10.9 +/-    1.53      24.8 +/-    1.53  0.040 / 0.090
G17     202.0          21.9               11.1 +/-    2.09      23.4 +/-    2.09  0.050 / 0.070
G18     95.4           20.5               10.8 +/-    0.66      23.5 +/-    0.66  0.050 / 0.080
G28     291.0          57.0               12.0 +/-    0.84      14.1 +/-    0.84  0.050 / 0.130
G30     345.3          67.9                9.8 +/-    0.69      10.5 +/-    0.69  0.070 / 0.110