PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/28-23:12:30
G08     301.2          22.2               13.3 +/-    1.11      27.7 +/-    1.11  0.020 / 0.030
G10     345.6          61.7               10.9 +/-    1.00      12.2 +/-    1.00  0.030 / 0.020
G14     223.0          39.6               13.8 +/-    1.86      20.3 +/-    1.86  0.040 / 0.050
G18     50.8           55.8               12.2 +/-    1.13      14.4 +/-    1.13  0.040 / 0.040
G21     140.3          47.6               12.8 +/-    0.47      16.7 +/-    0.47  0.060 / 0.060
G24     66.7           29.6               11.4 +/-    1.20      20.2 +/-    1.20  0.050 / 0.080
G27     263.1          35.5               15.3 +/-    1.85      24.0 +/-    1.85  0.100 / 0.070
G32     231.1          56.3               11.6 +/-    2.68      13.6 +/-    2.68  0.080 / 0.070