PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-17:28:00
G01     320.4          14.2                7.2 +/-    2.38      18.3 +/-    2.38  0.100 / 0.240
G08     259.5          15.6                7.1 +/-    1.92      17.4 +/-    1.92  0.100 / 0.330
G10     72.7           55.0                9.9 +/-    0.38      11.9 +/-    0.38  0.050 / 0.050
G11     306.1          21.7                6.9 +/-    1.31      14.6 +/-    1.31  0.050 / 0.050
G14     284.1          69.9               10.4 +/-    0.89      11.0 +/-    0.89  0.030 / 0.040
G18     306.6          40.1               10.1 +/-    1.06      14.6 +/-    1.06  0.030 / 0.040
G20     101.3          32.2               10.9 +/-    0.61      18.3 +/-    0.61  0.080 / 0.250
G27     229.8          12.6                8.9 +/-    2.43      23.5 +/-    2.43  0.070 / 0.220
G31     180.5          33.0               11.7 +/-    1.45      19.2 +/-    1.45  0.140 / 0.320
G32     352.9          71.3               11.0 +/-    0.26      11.6 +/-    0.26  0.190 / 0.360