PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-22:12:30
G10     286.6          48.0               10.7 +/-    0.88      13.8 +/-    0.88  0.040 / 0.040
G15     49.6           40.5                9.2 +/-    0.76      13.3 +/-    0.76  0.040 / 0.050
G20     333.3          65.1               10.2 +/-    0.91      11.1 +/-    0.91  0.070 / 0.130
G21     64.2           77.2               12.9 +/-    0.56      13.2 +/-    0.56  0.070 / 0.120
G24     103.2          23.1               12.6 +/-    2.75      25.7 +/-    2.75  0.080 / 0.240
G27     308.7          29.6                9.3 +/-    1.25      16.5 +/-    1.25  0.080 / 0.220
G29     168.7          15.3               14.6 +/-    1.83      36.0 +/-    1.83  0.040 / 0.050
G32     207.5          25.6               13.0 +/-    1.95      25.0 +/-    1.95  0.030 / 0.070