PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/11-07:43:00
G10     259.6          33.2                5.2 +/-    1.51       8.6 +/-    1.51  0.160 / 0.300
G13     46.1           24.0                4.0 +/-    2.70       7.9 +/-    2.70  0.120 / 0.370
G15     67.5           52.8                4.7 +/-    0.79       5.8 +/-    0.79  0.090 / 0.250
G16     285.8          14.0                4.1 +/-    1.89      10.5 +/-    1.89  0.120 / 0.240
G20     23.1           62.8                4.4 +/-    0.79       4.9 +/-    0.79  0.040 / 0.040
G21     348.8          67.4                4.2 +/-    0.89       4.5 +/-    0.89  0.040 / 0.040
G24     126.4          9.9               -10.6 +/-   23.22     -29.7 +/-   23.22  0.340 / 0.270
G26     257.9          11.2                6.0 +/-    2.14      16.3 +/-    2.14  0.200 / 0.380
G27     321.0          13.7                0.3 +/-    1.23       0.7 +/-    1.23  0.050 / 0.040
G29     167.0          38.8                5.3 +/-    0.99       7.8 +/-    0.99  0.050 / 0.040