PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/25-00:27:50
G08     305.6          21.1                8.9 +/-    1.84      19.1 +/-    1.84  0.050 / 0.090
G10     338.1          60.9                8.7 +/-    0.57       9.8 +/-    0.57  0.080 / 0.080
G14     219.7          32.7               12.8 +/-    1.97      21.3 +/-    1.97  0.040 / 0.040
G15     47.4           11.5                7.0 +/-    1.96      19.0 +/-    1.96  0.040 / 0.040
G20     320.7          56.9                9.4 +/-    0.46      11.0 +/-    0.46  0.080 / 0.190
G21     137.1          55.5               12.0 +/-    0.66      14.3 +/-    0.66  0.150 / 0.140
G24     68.8           28.8                8.7 +/-    0.95      15.7 +/-    0.95  0.060 / 0.080
G27     271.4          36.9               10.3 +/-    2.59      15.8 +/-    2.59  0.060 / 0.080
G32     226.1          57.1               11.7 +/-    2.95      13.6 +/-    2.95  0.120 / 0.300