PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/19-23:43:10
G10     289.5          49.1                9.9 +/-    0.76      12.6 +/-    0.76  0.070 / 0.100
G15     48.2           36.6                6.7 +/-    0.67      10.3 +/-    0.67  0.060 / 0.070
G20     286.8          42.2                5.5 +/-    1.20       7.7 +/-    1.20  0.040 / 0.050
G21     70.2           77.4                9.5 +/-    0.72       9.7 +/-    0.72  0.040 / 0.040
G24     101.7          24.1                8.9 +/-    1.22      17.7 +/-    1.22  0.070 / 0.190
G27     306.4          31.3                8.5 +/-    2.78      14.5 +/-    2.78  0.070 / 0.180
G29     168.9          13.8               12.3 +/-    5.71      31.5 +/-    5.71  0.060 / 0.070
G32     208.0          28.2               11.5 +/-    1.90      20.8 +/-    1.90  0.040 / 0.080