PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/13-20:12:40
G01     312.1          28.8               10.0 +/-    0.58      18.0 +/-    0.58  0.130 / 0.230
G10     98.6           45.2               10.5 +/-    0.63      14.1 +/-    0.63  0.090 / 0.230
G11     289.7          27.5                8.4 +/-    1.09      15.6 +/-    1.09  0.090 / 0.160
G14     341.3          69.4               11.0 +/-    0.46      11.7 +/-    0.46  0.100 / 0.160
G18     113.3          17.6               12.5 +/-    1.15      29.2 +/-    1.15  0.040 / 0.050
G22     306.9          20.2               11.0 +/-    0.95      24.1 +/-    0.95  0.040 / 0.050
G25     88.2           14.5               11.2 +/-    1.52      28.2 +/-    1.52  0.210 / 0.260
G31     173.9          56.3               14.0 +/-    0.81      16.5 +/-    0.81  0.070 / 0.130
G32     27.4           57.9                9.2 +/-    0.60      10.6 +/-    0.60  0.040 / 0.050