PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/14-16:42:40
G10     256.5          31.7                9.3 +/-    2.27      15.7 +/-    2.27  0.040 / 0.040
G13     48.0           25.5                8.3 +/-    2.12      16.1 +/-    2.12  0.040 / 0.040
G15     77.1           57.1               10.1 +/-    0.79      11.8 +/-    0.79  0.090 / 0.230
G16     289.8          14.7                5.5 +/-    1.97      13.7 +/-    1.97  0.130 / 0.150
G20     279.5          54.9                9.6 +/-    3.31      11.5 +/-    3.31  0.040 / 0.030
G21     346.6          65.9                8.9 +/-    0.92       9.6 +/-    0.92  0.040 / 0.030
G26     263.3          12.7                8.2 +/-    1.53      21.5 +/-    1.53  0.100 / 0.360
G29     165.6          42.0               10.3 +/-    0.74      14.5 +/-    0.74  0.100 / 0.300