PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/05-13:28:10
G02     60.9           30.9                4.6 +/-    3.32       8.0 +/-    3.32  0.030 / 0.030
G05     58.4           61.6                4.7 +/-    0.79       5.3 +/-    0.79  0.040 / 0.030
G12     186.3          33.4                5.4 +/-    1.81       8.9 +/-    1.81  0.070 / 0.070
G13     129.2          15.3                8.9 +/-    3.16      22.0 +/-    3.16  0.110 / 0.080
G15     162.5          12.9                7.5 +/-    3.74      19.6 +/-    3.74  0.040 / 0.040
G20     209.3          58.1                5.5 +/-    0.87       6.3 +/-    0.87  0.030 / 0.040
G21     273.3          21.8                4.3 +/-    1.53       9.1 +/-    1.53  0.090 / 0.060
G25     235.5          51.5                5.7 +/-    1.70       7.1 +/-    1.70  0.070 / 0.050
G29     332.8          59.3                1.7 +/-    0.53       1.9 +/-    0.53  0.130 / 0.310