PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/12-16:57:40
G01     41.4           16.7                9.5 +/-    3.01      22.7 +/-    3.01  0.070 / 0.100
G06     173.4          40.1               12.7 +/-    1.12      18.5 +/-    1.12  0.080 / 0.140
G13     237.9          22.3               12.8 +/-    1.25      26.7 +/-    1.25  0.340 / 0.180
G15     273.6          12.1               11.0 +/-    2.41      29.4 +/-    2.41  0.210 / 0.260
G17     359.7          71.0               10.2 +/-    0.61      10.7 +/-    0.61  0.070 / 0.080
G19     270.8          66.5               10.8 +/-    0.57      11.7 +/-    0.57  0.060 / 0.080
G24     316.3          19.9                9.3 +/-    2.68      20.6 +/-    2.68  0.080 / 0.140
G28     71.0           47.1               11.0 +/-    1.39      14.4 +/-    1.39  0.110 / 0.260
G30     154.7          28.7               12.8 +/-    1.95      23.1 +/-    1.95  0.200 / 0.150