PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/03-19:12:30
G08     288.5          22.9                9.2 +/-    1.45      18.9 +/-    1.45  0.080 / 0.100
G10     15.8           63.2                9.4 +/-    0.75      10.4 +/-    0.75  0.090 / 0.100
G14     234.6          50.8               10.3 +/-    1.91      12.9 +/-    1.91  0.120 / 0.100
G18     70.5           47.5                8.4 +/-    0.75      10.9 +/-    0.75  0.120 / 0.150
G21     147.3          30.9               10.0 +/-    1.95      17.3 +/-    1.95  0.030 / 0.020
G24     53.1           24.4                6.9 +/-    2.56      13.7 +/-    2.56  0.030 / 0.020
G27     248.2          28.9                9.7 +/-    1.86      17.4 +/-    1.86  0.050 / 0.110
G32     255.1          69.9                8.5 +/-    0.54       9.0 +/-    0.54  0.050 / 0.120