PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/08-08:27:40
G10     245.6          23.4                5.0 +/-    1.33      10.2 +/-    1.33  0.100 / 0.210
G13     59.1           32.2                4.6 +/-    0.87       7.8 +/-    0.87  0.110 / 0.200
G15     97.2           57.4                5.9 +/-    0.66       6.9 +/-    0.66  0.090 / 0.300
G16     306.7          13.1                2.5 +/-    1.59       6.5 +/-    1.59  0.120 / 0.290
G20     262.6          47.1                6.1 +/-    0.67       8.0 +/-    0.67  0.030 / 0.050
G21     332.2          58.8                3.2 +/-    0.58       3.7 +/-    0.58  0.030 / 0.050
G26     278.7          16.8                4.9 +/-    2.09      11.7 +/-    2.09  0.060 / 0.060
G29     158.9          51.5                6.5 +/-    1.92       8.1 +/-    1.92  0.050 / 0.060