PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/25-07:43:10
G02     355.3          77.4                1.8 +/-    0.69       1.8 +/-    0.69  0.060 / 0.080
G05     163.5          34.5                7.3 +/-    0.65      11.7 +/-    0.65  0.040 / 0.080
G06     40.8           43.4                1.8 +/-    0.87       2.5 +/-    0.87  0.020 / 0.030
G12     311.4          69.9                3.0 +/-    1.61       3.2 +/-    1.61  0.020 / 0.030
G17     86.6           11.5                5.4 +/-    1.55      14.7 +/-    1.55  0.090 / 0.110
G19     76.1           26.4                3.3 +/-    0.80       6.2 +/-    0.80  0.090 / 0.130
G24     229.0          22.7                6.1 +/-    2.04      12.6 +/-    2.04  0.080 / 0.260
G25     317.3          28.9                1.1 +/-    1.30       1.9 +/-    1.30  0.070 / 0.280
G29     287.4          10.8               -5.5 +/-   18.18     -15.0 +/-   18.18  0.100 / 0.210