PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-21:12:40
G02     18.0           66.4               13.7 +/-    0.57      14.8 +/-    0.57  0.090 / 0.130
G05     153.9          50.6               10.6 +/-    0.75      13.3 +/-    0.75  0.100 / 0.130
G06     48.0           24.2               12.4 +/-    2.13      24.7 +/-    2.13  0.050 / 0.040
G12     220.8          78.7               13.6 +/-    1.20      13.9 +/-    1.20  0.060 / 0.040
G19     88.7           19.5                9.9 +/-    1.40      22.0 +/-    1.40  0.090 / 0.090
G24     215.6          10.9                9.9 +/-   22.39      27.1 +/-   22.39  0.080 / 0.080
G25     310.4          44.0               10.5 +/-    0.75      14.4 +/-    0.75  0.030 / 0.030
G29     297.8          18.1               10.7 +/-    2.90      24.6 +/-    2.90  0.030 / 0.030