PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/17-00:13:10
G10     263.0          37.0               11.9 +/-    2.07      18.2 +/-    2.07  0.050 / 0.040
G13     43.6           20.3                8.0 +/-    2.19      17.4 +/-    2.19  0.050 / 0.040
G15     63.4           51.2                9.0 +/-    1.13      11.2 +/-    1.13  0.110 / 0.230
G16     283.7          13.6                7.9 +/-    1.47      20.3 +/-    1.47  0.130 / 0.220
G20     289.9          58.0                9.3 +/-    1.64      10.7 +/-    1.64  0.090 / 0.100
G21     353.1          68.7                9.6 +/-    0.69      10.2 +/-    0.69  0.110 / 0.130
G24     124.5          11.8               10.5 +/-    2.71      28.3 +/-    2.71  0.130 / 0.210
G27     320.7          14.9                6.5 +/-    2.33      16.3 +/-    2.33  0.200 / 0.260
G29     166.1          34.9               10.9 +/-    1.52      17.4 +/-    1.52  0.020 / 0.050