PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/08-22:13:10
G10     284.8          47.2               11.2 +/-    1.16      14.6 +/-    1.16  0.030 / 0.040
G15     50.3           41.7                9.3 +/-    0.42      13.2 +/-    0.42  0.040 / 0.050
G20     330.0          64.9                9.5 +/-    0.79      10.3 +/-    0.79  0.070 / 0.130
G21     57.6           77.3               11.5 +/-    0.56      11.8 +/-    0.56  0.090 / 0.160
G24     104.6          22.4               13.3 +/-    0.86      27.5 +/-    0.86  0.100 / 0.220
G27     309.9          28.7                9.4 +/-    0.88      16.9 +/-    0.88  0.120 / 0.220
G29     168.8          16.7               15.0 +/-    3.29      35.8 +/-    3.29  0.030 / 0.050
G32     207.0          24.2               14.2 +/-    1.43      28.2 +/-    1.43  0.030 / 0.060