PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/18-21:58:10
G10     263.1          37.2               12.0 +/-    1.21      18.2 +/-    1.21  0.100 / 0.320
G13     43.5           20.2                8.2 +/-    1.90      17.9 +/-    1.90  0.140 / 0.420
G15     64.2           52.0               10.6 +/-    0.52      13.1 +/-    0.52  0.160 / 0.340
G16     282.8          13.7               10.6 +/-    1.78      27.1 +/-    1.78  0.120 / 0.410
G20     290.9          58.5               11.2 +/-    0.62      12.9 +/-    0.62  0.060 / 0.100
G21     352.6          68.5                9.3 +/-    0.70      10.0 +/-    0.70  0.080 / 0.100
G24     124.9          11.7               12.0 +/-    2.49      32.2 +/-    2.49  0.050 / 0.070
G27     320.6          15.2                7.1 +/-    3.22      17.5 +/-    3.22  0.040 / 0.050
G29     166.5          35.7               10.8 +/-    0.92      16.9 +/-    0.92  0.130 / 0.360