PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/11-19:57:40
G10     284.4          47.1               11.0 +/-    0.90      14.4 +/-    0.90  0.070 / 0.120
G15     50.0           40.5               10.6 +/-    0.70      15.3 +/-    0.70  0.070 / 0.120
G20     329.2          64.8               10.0 +/-    0.87      11.0 +/-    0.87  0.040 / 0.050
G21     59.3           76.9               10.3 +/-    0.76      10.6 +/-    0.76  0.040 / 0.050
G24     104.1          22.3               14.4 +/-    1.03      30.1 +/-    1.03  0.080 / 0.200
G27     310.5          28.1                9.9 +/-    0.94      18.0 +/-    0.94  0.090 / 0.190
G29     168.5          16.6               13.7 +/-    2.41      32.7 +/-    2.41  0.040 / 0.050
G32     207.0          23.3               14.7 +/-    2.59      29.9 +/-    2.59  0.050 / 0.070