PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/14-19:58:00
G10     260.5          33.3               17.0 +/-    1.33      27.8 +/-    1.33  0.040 / 0.050
G13     46.0           24.3               13.7 +/-    1.42      27.2 +/-    1.42  0.040 / 0.050
G15     66.6           52.6               15.7 +/-    0.61      19.2 +/-    0.61  0.150 / 0.450
G16     289.7          12.6               15.8 +/-    2.90      41.7 +/-    2.90  0.160 / 0.440
G18     289.0          62.4               15.0 +/-    0.80      16.7 +/-    0.80  0.100 / 0.480
G20     50.0           40.0               13.6 +/-    0.62      19.8 +/-    0.62  0.100 / 0.440
G21     355.3          69.2               15.5 +/-    0.75      16.4 +/-    0.75  0.040 / 0.080
G26     262.8          10.7               13.6 +/-    2.51      37.4 +/-    2.51  0.040 / 0.090
G27     320.3          15.3               12.5 +/-    1.88      30.9 +/-    1.88  0.070 / 0.220
G29     164.8          32.6               18.0 +/-    1.15      30.0 +/-    1.15  0.060 / 0.200