PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/12-21:27:40
G10     268.8          39.4               13.7 +/-    1.49      20.1 +/-    1.49  0.130 / 0.240
G13     41.1           16.8                8.5 +/-    1.82      20.1 +/-    1.82  0.170 / 0.210
G15     62.0           52.9               10.6 +/-    0.44      12.9 +/-    0.44  0.100 / 0.220
G16     276.8          11.7               12.3 +/-    1.27      33.1 +/-    1.27  0.100 / 0.210
G20     300.6          61.0               10.2 +/-    0.52      11.5 +/-    0.52  0.070 / 0.080
G21     6.7            72.7               13.2 +/-    0.91      13.8 +/-    0.91  0.070 / 0.070
G24     116.7          15.4               12.5 +/-    1.40      30.8 +/-    1.40  0.050 / 0.050
G27     318.4          19.3               10.9 +/-    1.34      24.5 +/-    1.34  0.050 / 0.050
G29     168.2          30.1               12.9 +/-    1.28      22.6 +/-    1.28  0.170 / 0.410
G32     204.2          11.6                9.2 +/-   38.60      24.8 +/-   38.60  0.120 / 0.440