PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-19:58:10
G05     49.8           16.1                7.0 +/-    1.26      16.9 +/-    1.26  0.100 / 0.200
G10     238.6          15.5               11.5 +/-    1.74      28.1 +/-    1.74  0.100 / 0.310
G13     70.6           35.7                8.5 +/-    0.78      13.4 +/-    0.78  0.040 / 0.070
G15     127.8          54.1                9.9 +/-    0.46      11.9 +/-    0.46  0.040 / 0.070
G16     310.1          14.0                7.9 +/-    2.18      20.2 +/-    2.18  0.100 / 0.330
G20     251.7          39.8               11.0 +/-    1.05      16.1 +/-    1.05  0.100 / 0.330
G21     316.9          49.4                8.9 +/-    0.76      11.3 +/-    0.76  0.070 / 0.130
G26     283.1          20.0                7.9 +/-    1.91      17.5 +/-    1.91  0.070 / 0.130
G29     158.3          68.7               10.3 +/-    1.11      11.0 +/-    1.11  0.040 / 0.060