PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-23:13:10
G05     47.4           22.8                8.5 +/-    1.96      17.4 +/-    1.96  0.040 / 0.070
G13     81.1           37.5               10.8 +/-    0.91      16.4 +/-    0.91  0.060 / 0.080
G15     131.1          49.8               11.8 +/-    0.78      14.9 +/-    0.78  0.100 / 0.280
G18     242.7          39.0               12.0 +/-    1.62      17.7 +/-    1.62  0.110 / 0.310
G20     27.2           67.9                9.9 +/-    0.37      10.6 +/-    0.37  0.200 / 0.390
G21     310.2          45.4               10.4 +/-    1.44      14.0 +/-    1.44  0.280 / 0.350
G25     197.0          10.3               15.2 +/-    2.73      42.1 +/-    2.73  0.090 / 0.100
G26     292.3          19.9                9.5 +/-    0.95      20.9 +/-    0.95  0.130 / 0.210
G29     152.3          72.8               12.3 +/-    0.66      12.8 +/-    0.66  0.030 / 0.030