PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-08:13:10
G10     263.3          36.8                5.9 +/-    1.10       9.0 +/-    1.10  0.040 / 0.040
G13     43.5           20.4                3.9 +/-    2.09       8.4 +/-    2.09  0.040 / 0.030
G15     62.5           50.5                4.2 +/-    0.60       5.3 +/-    0.60  0.100 / 0.100
G16     288.0          12.4                3.3 +/-    2.25       8.6 +/-    2.25  0.070 / 0.080
G20     291.4          58.8                4.5 +/-    1.07       5.1 +/-    1.07  0.220 / 0.390
G21     3.7            70.8                4.2 +/-    0.69       4.5 +/-    0.69  0.200 / 0.400
G24     121.9          12.3                4.5 +/-    1.93      12.0 +/-    1.93  0.110 / 0.210
G27     320.9          14.2                1.2 +/-    2.48       3.1 +/-    2.48  0.280 / 0.320