PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/22-16:12:40
G03     215.7          63.2                6.6 +/-    1.26       7.3 +/-    1.26  0.130 / 0.270
G07     253.1          15.4                8.1 +/-    1.50      20.0 +/-    1.50  0.210 / 0.350
G09     306.3          21.9                6.8 +/-    2.97      14.4 +/-    2.97  0.040 / 0.040
G14     104.4          9.7                10.0 +/-    3.37      28.2 +/-    3.37  0.050 / 0.050
G16     126.1          61.8                8.2 +/-    0.39       9.2 +/-    0.39  0.110 / 0.170
G22     188.0          46.2                9.6 +/-    0.77      12.7 +/-    0.77  0.080 / 0.140
G23     323.3          53.2                7.2 +/-    0.60       8.8 +/-    0.60  0.350 / 0.530
G26     64.9           51.5                6.1 +/-    1.32       7.5 +/-    1.32  0.330 / 0.460
G31     55.0           16.7                5.9 +/-    3.32      14.0 +/-    3.32  0.050 / 0.050