PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/15-23:58:10
G01     228.0          19.0                9.3 +/-    2.43      21.0 +/-    2.43  0.030 / 0.040
G03     294.5          65.4                5.1 +/-    1.45       5.5 +/-    1.45  0.030 / 0.030
G14     84.4           25.5                7.2 +/-    1.84      13.9 +/-    1.84  0.190 / 0.280
G16     148.4          42.4                9.6 +/-    1.03      13.5 +/-    1.03  0.130 / 0.380
G22     226.8          72.5                7.7 +/-    1.02       8.0 +/-    1.02  0.100 / 0.210
G23     304.4          33.8                7.6 +/-    1.51      12.3 +/-    1.51  0.090 / 0.220
G26     104.0          53.8                8.1 +/-    0.55       9.7 +/-    0.55  0.040 / 0.080
G31     43.8           36.4                4.8 +/-    0.57       7.5 +/-    0.57  0.050 / 0.100