PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/22-01:42:30
G10     289.6          49.1               10.7 +/-    0.76      13.6 +/-    0.76  0.060 / 0.110
G15     47.9           35.4                6.5 +/-    0.78      10.3 +/-    0.78  0.070 / 0.110
G20     303.8          56.1                7.9 +/-    0.94       9.3 +/-    0.94  0.040 / 0.040
G21     71.7           77.2                9.1 +/-    0.64       9.3 +/-    0.64  0.040 / 0.050
G24     102.0          24.2                8.9 +/-    1.14      17.7 +/-    1.14  0.080 / 0.150
G27     306.0          31.5                8.7 +/-    2.14      14.8 +/-    2.14  0.060 / 0.160
G29     168.9          13.5               11.8 +/-    5.57      30.3 +/-    5.57  0.050 / 0.050
G32     208.1          28.4               14.0 +/-    1.35      25.4 +/-    1.35  0.040 / 0.050