PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-19:28:00
G01     320.2          14.2                7.8 +/-    2.53      19.8 +/-    2.53  0.180 / 0.310
G08     261.5          15.3               10.1 +/-    1.13      25.0 +/-    1.13  0.170 / 0.290
G10     71.8           56.1                7.1 +/-    0.72       8.4 +/-    0.72  0.030 / 0.030
G11     307.4          20.5               10.0 +/-    1.89      21.8 +/-    1.89  0.030 / 0.030
G14     284.0          69.4                8.5 +/-    0.58       9.0 +/-    0.58  0.030 / 0.040
G18     98.6           30.6                9.5 +/-    0.40      16.5 +/-    0.40  0.030 / 0.040
G27     226.0          11.2               10.0 +/-    3.68      27.3 +/-    3.68  0.090 / 0.090
G31     178.5          35.6               11.3 +/-    1.71      17.7 +/-    1.71  0.060 / 0.080
G32     354.7          70.9                8.1 +/-    0.77       8.5 +/-    0.77  0.130 / 0.290