PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/20-14:13:10
G01     296.2          38.6                5.7 +/-    2.36       8.5 +/-    2.36  0.050 / 0.050
G03     311.2          17.6                5.2 +/-    2.41      12.1 +/-    2.41  0.050 / 0.040
G10     116.2          32.3                6.9 +/-    1.07      11.5 +/-    1.07  0.100 / 0.160
G11     272.8          26.5                6.7 +/-    0.96      12.8 +/-    0.96  0.070 / 0.130
G14     12.5           62.6                4.9 +/-    1.03       5.4 +/-    1.03  0.020 / 0.020
G22     313.5          37.7                5.5 +/-    1.10       8.3 +/-    1.10  0.020 / 0.020
G25     72.1           18.9                6.1 +/-    2.53      13.8 +/-    2.53  0.060 / 0.060
G26     158.0          10.6              -11.2 +/-   31.16     -30.8 +/-   31.16  0.070 / 0.080
G31     140.5          76.5                7.2 +/-    0.73       7.4 +/-    0.73  0.090 / 0.080
G32     48.0           43.9                5.3 +/-    1.57       7.3 +/-    1.57  0.050 / 0.070