PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-16:13:10
G05     45.7           27.7                6.7 +/-    1.75      12.3 +/-    1.75  0.080 / 0.100
G13     92.0           36.0               10.9 +/-    1.47      16.9 +/-    1.47  0.040 / 0.100
G15     136.9          44.1               14.5 +/-    1.70      19.8 +/-    1.70  0.040 / 0.040
G18     236.3          34.5               13.1 +/-    1.10      21.1 +/-    1.10  0.040 / 0.050
G20     6.9            78.8                9.0 +/-    1.06       9.2 +/-    1.06  0.050 / 0.090
G21     305.4          43.1                8.6 +/-    1.68      12.0 +/-    1.68  0.050 / 0.070
G25     204.5          19.2               11.5 +/-    1.68      25.9 +/-    1.68  0.090 / 0.190
G26     302.3          18.2                6.7 +/-    1.16      15.3 +/-    1.16  0.080 / 0.180
G29     135.8          78.4               11.4 +/-    0.94      11.6 +/-    0.94  0.040 / 0.120