PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/29-20:28:10
G02     65.9           28.3               13.7 +/-    1.12      24.9 +/-    1.12  0.080 / 0.190
G05     51.6           58.9               15.4 +/-    0.71      17.7 +/-    0.71  0.080 / 0.180
G12     183.3          23.2               18.8 +/-    3.23      38.3 +/-    3.23  0.040 / 0.070
G13     122.9          21.0               19.2 +/-    1.63      41.2 +/-    1.63  0.040 / 0.090
G15     159.8          18.4               20.9 +/-    2.56      47.7 +/-    2.56  0.070 / 0.190
G20     213.4          70.8               18.1 +/-    0.80      19.1 +/-    0.80  0.060 / 0.190
G21     278.3          23.2               16.6 +/-    1.33      33.7 +/-    1.33  0.030 / 0.050
G25     220.4          43.5               19.0 +/-    0.85      26.2 +/-    0.85  0.030 / 0.070
G29     337.6          66.2               17.2 +/-    0.92      18.6 +/-    0.92  0.040 / 0.040