PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/01-03:58:10
G08     279.7          22.6                9.8 +/-    1.59      20.3 +/-    1.59  0.090 / 0.130
G10     30.0           62.9                5.9 +/-    0.66       6.5 +/-    0.66  0.060 / 0.130
G14     243.3          57.9                8.7 +/-    1.03      10.1 +/-    1.03  0.080 / 0.140
G18     75.6           46.4                5.6 +/-    0.62       7.4 +/-    0.62  0.050 / 0.160
G21     150.7          29.2                8.2 +/-    1.24      14.6 +/-    1.24  0.040 / 0.030
G24     48.1           20.9                3.5 +/-    0.73       7.5 +/-    0.73  0.040 / 0.040
G27     241.7          24.8                9.6 +/-    2.31      18.9 +/-    2.31  0.050 / 0.070
G31     181.2          16.3               10.1 +/-    2.23      24.3 +/-    2.23  0.060 / 0.080
G32     276.4          74.1                7.3 +/-    0.85       7.5 +/-    0.85  0.070 / 0.140