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               11.4 +/-    2.29      14.7 +/-    2.29  0.090 / 0.090
G15     49.6           40.5                8.7 +/-    0.82      12.6 +/-    0.82  0.070 / 0.100
G20     333.3          65.1               10.7 +/-    0.45      11.6 +/-    0.45  0.090 / 0.150
G21     64.2           77.2               11.3 +/-    0.32      11.5 +/-    0.32  0.080 / 0.160
G24     103.2          23.1               11.8 +/-    1.50      24.1 +/-    1.50  0.040 / 0.030
G27     308.7          29.6                9.8 +/-    1.12      17.3 +/-    1.12  0.040 / 0.030
G29     168.7          15.3               14.7 +/-    2.93      36.2 +/-    2.93  0.060 / 0.070
G32     207.5          25.6               14.9 +/-    2.98      28.7 +/-    2.98  0.040 / 0.090