PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/15-00:12:40
G10     294.9          51.0                8.6 +/-    0.79      10.7 +/-    0.79  0.060 / 0.090
G15     47.0           33.0                5.8 +/-    0.84       9.5 +/-    0.84  0.060 / 0.080
G20     293.5          47.0                6.9 +/-    0.46       9.0 +/-    0.46  0.040 / 0.040
G21     87.1           76.0                9.4 +/-    0.63       9.7 +/-    0.63  0.040 / 0.060
G24     97.7           25.7               10.4 +/-    1.30      19.9 +/-    1.30  0.070 / 0.130
G27     302.6          33.3               10.2 +/-    0.97      16.8 +/-    0.97  0.080 / 0.110
G32     209.5          32.0               10.8 +/-    0.93      18.1 +/-    0.93  0.050 / 0.090