PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-21:12:30
G05     49.4           15.9                8.1 +/-    0.84      19.8 +/-    0.84  0.110 / 0.210
G10     237.4          14.1               17.3 +/-    3.03      44.0 +/-    3.03  0.100 / 0.170
G13     72.9           36.0               11.0 +/-    0.90      17.1 +/-    0.90  0.040 / 0.080
G15     127.8          53.1               13.3 +/-    0.69      16.1 +/-    0.69  0.040 / 0.070
G16     310.8          14.2                9.1 +/-    2.51      23.2 +/-    2.51  0.130 / 0.360
G20     241.3          3.2                 7.6 +/-    1.95      23.5 +/-    1.95  0.120 / 0.350
G21     314.1          47.4               10.2 +/-    1.37      13.2 +/-    1.37  0.050 / 0.130
G26     283.7          20.7               10.5 +/-    1.57      22.8 +/-    1.57  0.050 / 0.120
G29     157.8          71.6               13.4 +/-    1.32      14.1 +/-    1.32  0.030 / 0.050