PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/03-18:42:30
G02     204.6          36.7               12.8 +/-    1.17      19.7 +/-    1.17  0.100 / 0.180
G06     148.7          73.1               11.2 +/-    0.90      11.7 +/-    0.90  0.210 / 0.250
G12     310.0          20.1               10.5 +/-    1.23      23.1 +/-    1.23  0.080 / 0.080
G17     38.1           47.6               10.5 +/-    1.49      13.7 +/-    1.49  0.110 / 0.090
G19     1.7            64.6               10.0 +/-    0.45      10.9 +/-    0.45  0.030 / 0.040
G24     293.4          40.1               14.5 +/-    8.80      21.0 +/-    8.80  0.030 / 0.060
G28     105.4          29.2               11.6 +/-    1.77      20.7 +/-    1.77  0.040 / 0.040