PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-00:12:30
G10     289.7          49.1               11.0 +/-    0.82      14.0 +/-    0.82  0.070 / 0.080
G15     48.1           36.2                7.0 +/-    0.48      10.9 +/-    0.48  0.060 / 0.100
G20     290.1          45.8               17.0 +/-    0.90      22.7 +/-    0.90  0.040 / 0.040
G21     71.2           77.3                8.8 +/-    0.62       9.0 +/-    0.62  0.040 / 0.050
G24     101.6          24.1                8.6 +/-    1.22      17.2 +/-    1.22  0.040 / 0.050
G27     306.2          31.4                9.8 +/-    2.37      16.7 +/-    2.37  0.040 / 0.060
G29     168.9          13.6               11.9 +/-    5.97      30.7 +/-    5.97  0.080 / 0.170
G32     208.1          28.4               13.8 +/-    1.01      25.0 +/-    1.01  0.060 / 0.130