PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/18-17:58:00
G01     307.9          32.5                7.1 +/-    1.31      11.8 +/-    1.31  0.070 / 0.140
G10     105.0          41.2                7.5 +/-    0.90      10.8 +/-    0.90  0.060 / 0.160
G11     284.8          27.5                6.8 +/-    1.10      12.6 +/-    1.10  0.070 / 0.110
G14     353.0          67.5                5.3 +/-    0.77       5.6 +/-    0.77  0.060 / 0.120
G18     117.2          13.0                9.1 +/-    2.38      23.6 +/-    2.38  0.020 / 0.040
G22     309.4          25.4                6.4 +/-    2.71      12.4 +/-    2.71  0.030 / 0.040
G25     83.4           16.4                7.6 +/-    1.29      18.2 +/-    1.29  0.070 / 0.240
G31     168.2          63.8                8.3 +/-    0.73       9.1 +/-    0.73  0.070 / 0.210
G32     35.2           53.1                6.9 +/-    0.42       8.4 +/-    0.42  0.030 / 0.040