PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/13-13:27:50
G01     304.0          35.8                4.3 +/-    0.79       6.8 +/-    0.79  0.040 / 0.040
G10     109.5          36.5                5.3 +/-    0.65       8.2 +/-    0.65  0.040 / 0.050
G11     276.6          28.0                4.3 +/-    1.34       7.9 +/-    1.34  0.050 / 0.060
G14     6.1            65.0                3.9 +/-    1.01       4.2 +/-    1.01  0.050 / 0.060
G18     267.0          51.3                1.4 +/-   10.43       1.7 +/-   10.43  0.050 / 0.100
G20     122.6          11.3                5.6 +/-    2.11      15.1 +/-    2.11  0.070 / 0.110
G22     311.8          31.7                3.5 +/-    1.40       5.9 +/-    1.40  0.110 / 0.260
G25     77.0           16.7                4.7 +/-    1.62      11.3 +/-    1.62  0.100 / 0.260
G31     167.7          66.7                6.5 +/-    1.44       7.0 +/-    1.44  0.080 / 0.090
G32     34.9           53.5                3.7 +/-    0.52       4.5 +/-    0.52  0.080 / 0.080