PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/03-20:42:50
G10     260.5          33.3               18.4 +/-    1.28      30.1 +/-    1.28  0.110 / 0.440
G13     46.1           24.4               16.8 +/-    1.90      33.3 +/-    1.90  0.100 / 0.500
G15     67.0           52.8               18.4 +/-    0.65      22.4 +/-    0.65  0.050 / 0.050
G16     289.2          12.7               17.3 +/-    1.01      45.6 +/-    1.01  0.040 / 0.050
G18     288.5          62.2               17.2 +/-    0.75      19.2 +/-    0.75  0.150 / 0.480
G20     50.2           39.7               16.4 +/-    0.77      23.9 +/-    0.77  0.150 / 0.430
G21     354.1          69.0               17.5 +/-    0.57      18.6 +/-    0.57  0.150 / 0.300
G26     262.2          10.7               17.3 +/-    1.42      47.6 +/-    1.42  0.150 / 0.350
G27     320.3          15.3               15.0 +/-    2.16      37.0 +/-    2.16  0.070 / 0.200
G29     165.1          33.1               21.3 +/-    1.93      35.0 +/-    1.93  0.060 / 0.200