PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-22:43:00
G01     227.4          18.4                7.5 +/-    1.85      17.2 +/-    1.85  0.170 / 0.160
G03     292.3          66.3                5.6 +/-    0.60       6.1 +/-    0.60  0.100 / 0.200
G14     85.2           24.8                7.3 +/-    1.41      14.4 +/-    1.41  0.030 / 0.030
G16     148.5          42.8               10.3 +/-    1.49      14.3 +/-    1.49  0.030 / 0.030
G22     223.5          71.9                6.8 +/-    0.49       7.1 +/-    0.49  0.210 / 0.260
G23     304.9          34.3                5.4 +/-    1.36       8.6 +/-    1.36  0.210 / 0.150
G26     104.0          54.2                7.7 +/-    0.57       9.3 +/-    0.57  0.040 / 0.030
G31     43.8           36.7                5.5 +/-    0.99       8.4 +/-    0.99  0.030 / 0.020