PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/17-04:12:50
G08     276.9          21.3                8.9 +/-    1.41      19.0 +/-    1.41  0.080 / 0.150
G10     42.2           61.4                6.6 +/-    0.72       7.4 +/-    0.72  0.070 / 0.190
G14     247.1          57.3                7.7 +/-    0.96       8.9 +/-    0.96  0.100 / 0.180
G18     316.1          23.3                7.3 +/-    1.16      14.8 +/-    1.16  0.120 / 0.150
G20     71.8           55.9                8.0 +/-    1.30       9.4 +/-    1.30  0.040 / 0.060
G21     152.9          25.6                7.2 +/-    1.30      14.0 +/-    1.30  0.040 / 0.050
G24     43.7           15.8                5.2 +/-    2.79      12.7 +/-    2.79  0.100 / 0.190
G27     239.4          22.3               10.0 +/-    2.02      20.8 +/-    2.02  0.090 / 0.210
G31     178.8          22.5                8.9 +/-    0.98      18.5 +/-    0.98  0.270 / 0.290
G32     306.7          76.9                7.1 +/-    0.62       7.3 +/-    0.62  0.430 / 0.460