PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/14-19:42:40
G02     280.2          80.4               13.8 +/-    0.60      14.0 +/-    0.60  0.090 / 0.130
G05     168.0          24.9               15.1 +/-    1.13      29.7 +/-    1.13  0.090 / 0.120
G06     40.4           47.2               12.5 +/-    0.77      16.4 +/-    0.77  0.070 / 0.210
G12     320.2          65.2               12.6 +/-    0.91      13.8 +/-    0.91  0.100 / 0.200
G17     78.7           16.9               12.4 +/-    1.26      29.5 +/-    1.26  0.030 / 0.050
G19     64.6           35.1               13.1 +/-    2.18      20.7 +/-    2.18  0.040 / 0.060
G24     234.6          28.6               15.7 +/-    1.25      28.3 +/-    1.25  0.300 / 0.280
G25     317.7          20.9               12.9 +/-    2.27      27.7 +/-    2.27  0.260 / 0.260