PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-19:12:40
G10     266.9          38.4               12.6 +/-    1.22      18.8 +/-    1.22  0.170 / 0.190
G13     41.9           18.1               10.2 +/-    3.39      23.6 +/-    3.39  0.210 / 0.130
G15     62.5           52.4               10.7 +/-    0.83      13.2 +/-    0.83  0.190 / 0.490
G16     279.1          12.3               11.1 +/-    1.39      29.5 +/-    1.39  0.220 / 0.490
G20     297.3          60.3               11.4 +/-    0.81      12.9 +/-    0.81  0.190 / 0.190
G21     4.8            72.0               12.4 +/-    0.97      13.0 +/-    0.97  0.170 / 0.210
G24     117.5          14.5               12.3 +/-    1.95      31.1 +/-    1.95  0.040 / 0.030
G27     319.4          17.5               11.9 +/-    2.62      27.9 +/-    2.62  0.040 / 0.030
G29     167.7          31.5               11.8 +/-    1.22      20.1 +/-    1.22  0.170 / 0.270