PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/29-20:58:10
G10     291.6          49.9               10.9 +/-    0.85      13.8 +/-    0.85  0.060 / 0.090
G15     48.0           36.4                9.0 +/-    0.52      14.0 +/-    0.52  0.060 / 0.090
G20     342.1          65.4                9.8 +/-    0.89      10.6 +/-    0.89  0.040 / 0.050
G21     81.5           75.9               12.1 +/-    0.76      12.5 +/-    0.76  0.040 / 0.060
G24     99.0           24.6               10.7 +/-    0.98      21.0 +/-    0.98  0.070 / 0.180
G27     305.8          31.4               10.2 +/-    0.90      17.4 +/-    0.90  0.070 / 0.150
G29     168.4          11.7               13.3 +/-    2.04      35.8 +/-    2.04  0.040 / 0.070
G32     208.7          28.7               14.6 +/-    2.32      26.4 +/-    2.32  0.060 / 0.070