PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/03-21:27:40
G10     252.3          28.3               10.8 +/-    0.68      19.7 +/-    0.68  0.040 / 0.050
G13     51.6           28.5                5.9 +/-    0.86      10.7 +/-    0.86  0.040 / 0.060
G15     89.3           59.4                8.2 +/-    0.49       9.3 +/-    0.49  0.170 / 0.630
G16     291.8          16.0                8.7 +/-    5.40      21.2 +/-    5.40  0.170 / 0.600
G20     253.3          13.0                5.0 +/-    0.89      13.0 +/-    0.89  0.070 / 0.160
G21     334.6          60.8                8.0 +/-    0.55       9.0 +/-    0.55  0.070 / 0.170
G26     264.3          14.9               10.1 +/-    4.76      25.3 +/-    4.76  0.020 / 0.040
G29     165.8          49.0                7.9 +/-    0.62      10.1 +/-    0.62  0.030 / 0.040