PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/13-18:12:50
G10     264.7          38.4               10.1 +/-    0.96      15.1 +/-    0.96  0.130 / 0.210
G13     42.7           19.0                8.3 +/-    1.20      18.8 +/-    1.20  0.110 / 0.130
G15     61.0           49.7                9.1 +/-    0.47      11.6 +/-    0.47  0.080 / 0.320
G20     296.0          60.3                9.2 +/-    0.68      10.4 +/-    0.68  0.100 / 0.380
G21     356.5          69.7                9.9 +/-    0.74      10.5 +/-    0.74  0.050 / 0.050
G24     124.4          12.5                9.6 +/-    1.67      25.2 +/-    1.67  0.050 / 0.050
G27     319.9          16.7                7.2 +/-    1.45      17.2 +/-    1.45  0.040 / 0.090
G29     167.0          34.9               10.3 +/-    0.67      16.4 +/-    0.67  0.040 / 0.070