PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/18-16:57:50
G02     200.6          16.6               11.8 +/-    2.26      28.2 +/-    2.26  0.110 / 0.170
G06     169.7          52.3               13.7 +/-    0.57      16.8 +/-    0.57  0.110 / 0.140
G13     229.1          14.9               11.4 +/-    2.15      28.4 +/-    2.15  0.080 / 0.100
G17     18.4           62.0               11.4 +/-    0.83      12.7 +/-    0.83  0.080 / 0.110
G19     303.8          70.3               10.7 +/-    0.92      11.3 +/-    0.92  0.040 / 0.040
G24     311.1          28.7               10.8 +/-    1.71      19.5 +/-    1.71  0.040 / 0.050
G28     84.7           41.3               11.4 +/-    0.86      16.2 +/-    0.86  0.310 / 0.430
G30     157.1          18.0               12.4 +/-    1.70      28.7 +/-    1.70  0.310 / 0.410