PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/07-18:28:00
G05     49.4           17.5               19.8 +/-    1.52      46.2 +/-    1.52  0.060 / 0.060
G10     238.3          15.3               21.3 +/-    1.11      52.6 +/-    1.11  0.040 / 0.070
G13     71.1           35.7               23.1 +/-    0.95      36.3 +/-    0.95  0.130 / 0.370
G15     126.3          54.0               24.5 +/-    0.68      29.5 +/-    0.68  0.160 / 0.380
G16     310.8          13.7               18.3 +/-    1.99      47.1 +/-    1.99  0.060 / 0.090
G20     251.3          39.5               23.5 +/-    0.71      34.4 +/-    0.71  0.080 / 0.090
G21     317.1          49.6               22.4 +/-    1.46      28.4 +/-    1.46  0.030 / 0.030
G26     284.1          19.9               19.3 +/-    2.60      42.6 +/-    2.60  0.030 / 0.030
G29     157.6          68.7               24.4 +/-    1.40      26.0 +/-    1.40  0.070 / 0.120