PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/14-23:42:30
G03     234.5          67.0                9.5 +/-    0.71      10.2 +/-    0.71  0.050 / 0.050
G09     304.3          19.1                7.5 +/-    1.95      16.8 +/-    1.95  0.050 / 0.050
G14     101.4          13.0                7.0 +/-    2.04      18.2 +/-    2.04  0.270 / 0.360
G16     131.5          59.8               12.0 +/-    0.41      13.6 +/-    0.41  0.290 / 0.470
G22     194.7          54.3               11.3 +/-    0.92      13.6 +/-    0.92  0.080 / 0.150
G23     320.1          49.8                8.4 +/-    0.81      10.7 +/-    0.81  0.110 / 0.120
G26     68.7           52.4                7.9 +/-    0.56       9.7 +/-    0.56  0.100 / 0.240
G31     52.5           20.0                5.1 +/-    3.66      11.1 +/-    3.66  0.140 / 0.310