PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/25-19:58:00
G10     252.5          28.5               10.3 +/-    1.36      18.7 +/-    1.36  0.210 / 0.640
G13     51.5           28.3                7.8 +/-    0.86      14.2 +/-    0.86  0.160 / 0.610
G15     90.3           59.8                9.9 +/-    0.41      11.3 +/-    0.41  0.040 / 0.070
G16     293.0          15.5                7.0 +/-    2.96      17.2 +/-    2.96  0.040 / 0.060
G20     272.8          52.2               10.2 +/-    0.94      12.5 +/-    0.94  0.070 / 0.170
G21     337.1          61.8                9.7 +/-    0.52      10.9 +/-    0.52  0.080 / 0.180
G26     265.7          14.7                8.2 +/-    1.59      20.7 +/-    1.59  0.040 / 0.050
G29     165.3          47.9               10.6 +/-    0.43      13.7 +/-    0.43  0.030 / 0.050