PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/11-21:12:50
G05     49.4           18.3               13.5 +/-    0.99      30.9 +/-    0.99  0.170 / 0.280
G10     238.6          14.2               21.2 +/-    2.59      53.7 +/-    2.59  0.130 / 0.270
G13     73.1           37.2               17.7 +/-    0.40      27.0 +/-    0.40  0.040 / 0.070
G15     119.3          54.2               20.3 +/-    1.05      24.4 +/-    1.05  0.040 / 0.070
G16     313.8          11.7               14.2 +/-    1.58      38.2 +/-    1.58  0.170 / 0.450
G18     249.0          44.8               18.6 +/-    0.67      25.1 +/-    0.67  0.200 / 0.480
G20     31.4           62.6               17.6 +/-    0.84      19.6 +/-    0.84  0.060 / 0.120
G21     317.1          50.3               17.6 +/-    1.12      22.2 +/-    1.12  0.060 / 0.100
G26     287.2          19.1               15.3 +/-    1.58      34.5 +/-    1.58  0.060 / 0.170
G29     156.2          64.1               18.0 +/-    0.61      19.8 +/-    0.61  0.060 / 0.130