PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/27-16:42:30
G10     283.0          46.6                9.2 +/-    2.16      12.1 +/-    2.16  0.090 / 0.150
G15     49.9           39.5                6.4 +/-    1.44       9.4 +/-    1.44  0.080 / 0.180
G20     326.8          64.6                8.5 +/-    0.62       9.3 +/-    0.62  0.040 / 0.030
G21     61.5           76.2                8.6 +/-    1.14       8.8 +/-    1.14  0.040 / 0.040
G24     104.0          21.7                8.7 +/-    1.30      18.3 +/-    1.30  0.080 / 0.110
G27     311.9          26.8                6.8 +/-    1.39      12.8 +/-    1.39  0.130 / 0.130
G29     167.9          16.7                8.4 +/-    1.42      20.1 +/-    1.42  0.150 / 0.170
G32     206.9          21.2                8.9 +/-    1.47      19.0 +/-    1.47  0.150 / 0.210