PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/28-13:57:30
G02     1.4            75.1                7.0 +/-    0.63       7.2 +/-    0.63  0.040 / 0.070
G05     164.4          36.8               10.2 +/-    1.14      15.6 +/-    1.14  0.040 / 0.070
G06     42.4           38.5                4.4 +/-    0.53       6.5 +/-    0.53  0.100 / 0.240
G12     301.7          74.5                5.9 +/-    0.56       6.1 +/-    0.56  0.090 / 0.250
G19     80.6           22.9                6.8 +/-    0.94      13.9 +/-    0.94  0.040 / 0.030
G24     226.1          19.8                8.0 +/-    2.06      17.8 +/-    2.06  0.030 / 0.030
G25     316.0          34.9                6.2 +/-    1.14       9.9 +/-    1.14  0.070 / 0.110
G29     292.3          16.6                4.6 +/-    1.43      11.0 +/-    1.43  0.080 / 0.100