PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/04-20:58:20
G05     52.7           9.5                 9.1 +/-    3.33      25.5 +/-    3.33  0.300 / 0.210
G10     243.3          20.3               13.0 +/-    2.60      28.3 +/-    2.60  0.330 / 0.430
G13     62.7           33.9                8.6 +/-    1.31      13.9 +/-    1.31  0.100 / 0.300
G15     113.5          57.8               10.1 +/-    0.58      11.7 +/-    0.58  0.110 / 0.340
G16     302.9          15.9                8.3 +/-    1.76      20.1 +/-    1.76  0.050 / 0.060
G20     245.6          5.1                 4.7 +/-    3.27      14.3 +/-    3.27  0.050 / 0.050
G21     322.2          53.0                9.7 +/-    0.45      11.8 +/-    0.45  0.110 / 0.120
G26     275.0          18.9               10.2 +/-    1.33      23.0 +/-    1.33  0.090 / 0.110
G29     162.2          61.9                9.5 +/-    0.48      10.6 +/-    0.48  0.040 / 0.040