PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-18:27:50
G01     305.5          34.7               10.3 +/-    0.58      16.4 +/-    0.58  0.030 / 0.040
G10     108.1          37.8               11.7 +/-    0.89      17.6 +/-    0.89  0.030 / 0.040
G11     277.9          28.3               11.2 +/-    1.91      20.4 +/-    1.91  0.090 / 0.070
G14     3.0            65.8                9.5 +/-    0.47      10.3 +/-    0.47  0.060 / 0.090
G18     268.4          51.6               12.2 +/-    1.39      15.2 +/-    1.39  0.190 / 0.280
G20     121.7          12.5               12.6 +/-    1.26      33.4 +/-    1.26  0.190 / 0.420
G22     310.6          27.4                9.5 +/-    1.90      17.6 +/-    1.90  0.090 / 0.150
G25     75.0           15.7                8.7 +/-    2.91      21.2 +/-    2.91  0.100 / 0.150
G31     173.3          63.4               12.6 +/-    0.30      13.9 +/-    0.30  0.070 / 0.140
G32     36.7           52.2               10.2 +/-    0.99      12.5 +/-    0.99  0.080 / 0.160