PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/10-21:42:50
G10     272.2          41.3               13.8 +/-    1.71      19.6 +/-    1.71  0.250 / 0.240
G13     39.9           14.4                9.8 +/-    2.00      24.6 +/-    2.00  0.120 / 0.130
G15     58.3           50.5               12.3 +/-    0.70      15.4 +/-    0.70  0.140 / 0.180
G20     306.8          62.2               12.8 +/-    0.62      14.3 +/-    0.62  0.130 / 0.150
G21     15.5           74.4               13.9 +/-    0.44      14.4 +/-    0.44  0.040 / 0.040
G24     114.1          17.1               16.2 +/-    1.81      38.4 +/-    1.81  0.040 / 0.040
G27     316.8          21.6               10.9 +/-    1.90      23.0 +/-    1.90  0.140 / 0.280
G29     168.5          26.9               17.1 +/-    1.16      32.0 +/-    1.16  0.280 / 0.310
G32     204.7          14.4               21.8 +/-    2.59      55.1 +/-    2.59  0.040 / 0.040