PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-04:57:50
G08     277.4          21.2                7.7 +/-    1.00      16.5 +/-    1.00  0.100 / 0.220
G10     42.1           61.5                6.4 +/-    0.42       7.2 +/-    0.42  0.090 / 0.240
G14     246.9          56.8               10.0 +/-    0.93      11.7 +/-    0.93  0.040 / 0.070
G18     316.2          23.2                5.0 +/-    2.20      10.3 +/-    2.20  0.040 / 0.060
G20     78.6           50.5               10.3 +/-    0.34      12.9 +/-    0.34  0.030 / 0.030
G21     152.8          25.5                8.4 +/-    1.12      16.2 +/-    1.12  0.030 / 0.030
G24     43.8           15.9                4.4 +/-    1.17      10.7 +/-    1.17  0.100 / 0.180
G27     239.4          22.3               10.0 +/-    2.03      20.9 +/-    2.03  0.110 / 0.190
G31     178.8          22.5               10.0 +/-    2.44      20.8 +/-    2.44  0.110 / 0.250
G32     306.7          76.9                8.0 +/-    0.67       8.2 +/-    0.67  0.100 / 0.280