PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/23-14:12:30
G02     204.8          33.8                9.8 +/-    0.87      15.8 +/-    0.87  0.080 / 0.090
G06     152.9          71.5                9.2 +/-    0.58       9.6 +/-    0.58  0.060 / 0.100
G12     307.9          16.6                5.0 +/-    4.62      12.0 +/-    4.62  0.170 / 0.350
G17     34.5           50.4                5.6 +/-    0.68       7.1 +/-    0.68  0.150 / 0.240
G19     8.8            63.2                5.5 +/-    0.64       6.1 +/-    0.64  0.110 / 0.150
G24     296.3          38.2                7.6 +/-    2.12      11.4 +/-    2.12  0.110 / 0.150
G28     100.9          35.7                6.6 +/-    0.40      10.4 +/-    0.40  0.040 / 0.030