PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/01/29-15:12:30
G08     293.6          22.2                3.7 +/-    1.00       7.7 +/-    1.00  0.050 / 0.080
G10     9.3            63.1                4.9 +/-    0.48       5.5 +/-    0.48  0.050 / 0.070
G14     231.2          46.6                5.7 +/-    0.50       7.5 +/-    0.50  0.080 / 0.110
G21     146.4          35.8                8.4 +/-    1.15      13.1 +/-    1.15  0.090 / 0.130
G24     55.5           25.6                6.1 +/-    0.89      11.8 +/-    0.89  0.030 / 0.030
G27     251.7          30.7                5.8 +/-    1.28      10.1 +/-    1.28  0.030 / 0.030
G32     249.6          69.1                7.1 +/-    0.72       7.6 +/-    0.72  0.060 / 0.110