PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/27-22:13:00
G05     49.1           19.2               18.0 +/-    0.46      40.3 +/-    0.46  0.050 / 0.070
G10     238.2          13.7               25.4 +/-    1.45      65.3 +/-    1.45  0.040 / 0.070
G13     73.8           37.3               23.2 +/-    0.38      35.4 +/-    0.38  0.100 / 0.300
G15     121.4          53.8               25.9 +/-    0.67      31.3 +/-    0.67  0.140 / 0.240
G16     313.8          11.9               17.9 +/-    1.58      47.9 +/-    1.58  0.140 / 0.400
G18     248.2          43.9               25.9 +/-    1.66      35.4 +/-    1.66  0.190 / 0.390
G20     31.4           62.8               22.0 +/-    0.56      24.4 +/-    0.56  0.030 / 0.040
G21     316.0          49.5               22.5 +/-    0.86      28.5 +/-    0.86  0.030 / 0.040
G26     287.2          19.4               20.4 +/-    1.75      45.7 +/-    1.75  0.050 / 0.140
G29     156.3          65.5               24.0 +/-    0.75      26.1 +/-    0.75  0.060 / 0.150