PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-18:12:40
G05     51.0           14.4               10.0 +/-    2.28      25.3 +/-    2.28  0.050 / 0.070
G10     241.3          18.5               13.4 +/-    1.50      30.5 +/-    1.50  0.040 / 0.060
G13     65.8           34.7               10.2 +/-    0.77      16.3 +/-    0.77  0.100 / 0.510
G15     118.3          56.6               11.1 +/-    0.45      13.0 +/-    0.45  0.130 / 0.570
G16     307.0          14.6                8.0 +/-    2.79      20.1 +/-    2.79  0.090 / 0.250
G20     255.7          42.7               10.7 +/-    1.17      14.9 +/-    1.17  0.080 / 0.220
G21     321.6          52.6               12.2 +/-    1.79      14.9 +/-    1.79  0.050 / 0.130
G26     279.9          19.1                8.7 +/-    1.49      19.7 +/-    1.49  0.060 / 0.110
G29     160.0          63.6               11.1 +/-    0.91      12.3 +/-    0.91  0.040 / 0.050