PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/15-19:58:30
G01     313.7          26.8                9.0 +/-    1.67      16.8 +/-    1.67  0.110 / 0.140
G10     95.3           46.9                9.5 +/-    0.86      12.5 +/-    0.86  0.080 / 0.140
G11     292.6          26.9                9.5 +/-    0.89      17.8 +/-    0.89  0.060 / 0.160
G14     333.7          70.2                9.7 +/-    0.73      10.3 +/-    0.73  0.070 / 0.170
G18     111.4          19.5               10.6 +/-    1.68      23.7 +/-    1.68  0.030 / 0.030
G22     305.8          18.2                9.1 +/-    1.50      21.0 +/-    1.50  0.030 / 0.030
G25     90.7           13.5               10.8 +/-    1.77      28.0 +/-    1.77  0.040 / 0.050
G31     174.8          53.3               13.7 +/-    0.91      16.7 +/-    0.91  0.040 / 0.040
G32     24.0           59.8                9.5 +/-    0.41      10.8 +/-    0.41  0.180 / 0.260