PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/25-01:42:40
G08     297.8          22.9                7.8 +/-    0.79      15.9 +/-    0.79  0.050 / 0.060
G10     351.9          62.3                7.9 +/-    0.38       8.8 +/-    0.38  0.050 / 0.060
G14     225.3          42.7                9.0 +/-    1.78      12.6 +/-    1.78  0.090 / 0.080
G18     54.1           55.0                8.5 +/-    0.91      10.2 +/-    0.91  0.070 / 0.080
G21     142.5          45.8                9.1 +/-    0.53      12.1 +/-    0.53  0.080 / 0.060
G24     63.4           28.8                9.4 +/-    0.98      16.8 +/-    0.98  0.050 / 0.040
G27     259.3          34.3               11.8 +/-    1.06      18.9 +/-    1.06  0.100 / 0.090
G32     235.3          60.6                8.3 +/-    1.57       9.4 +/-    1.57  0.090 / 0.080