PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/24-09:28:10
G07     29.8           68.8                4.7 +/-    0.56       5.0 +/-    0.56  0.020 / 0.040
G08     64.4           50.0                4.7 +/-    0.64       6.0 +/-    0.64  0.030 / 0.040
G09     179.0          47.4                7.7 +/-    1.38      10.0 +/-    1.38  0.160 / 0.210
G11     129.2          29.8                6.3 +/-    1.03      11.1 +/-    1.03  0.130 / 0.290
G18     111.9          11.4                3.5 +/-    4.15       9.6 +/-    4.15  0.060 / 0.100
G23     159.4          15.2                5.2 +/-    1.47      12.9 +/-    1.47  0.080 / 0.110
G27     39.8           15.9                3.1 +/-    1.51       7.5 +/-    1.51  0.120 / 0.200
G28     256.7          40.9                5.9 +/-    1.59       8.5 +/-    1.59  0.120 / 0.240
G30     321.5          52.0                5.8 +/-    1.32       7.1 +/-    1.32  0.090 / 0.320