PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-09:28:00
G02     201.3          28.2                7.0 +/-    1.55      12.7 +/-    1.55  0.290 / 0.630
G06     163.9          62.6                7.7 +/-    0.32       8.6 +/-    0.32  0.270 / 0.540
G12     303.9          12.8                4.3 +/-    3.32      11.4 +/-    3.32  0.220 / 0.210
G17     29.1           54.5                6.5 +/-    1.08       7.8 +/-    1.08  0.120 / 0.220
G19     351.3          68.3                5.9 +/-    0.63       6.3 +/-    0.63  0.050 / 0.070
G24     305.0          33.2                2.9 +/-    2.29       4.7 +/-    2.29  0.060 / 0.080
G28     90.7           42.1                7.9 +/-    0.64      11.1 +/-    0.64  0.040 / 0.040
G30     158.7          10.3                4.8 +/-    6.62      13.3 +/-    6.62  0.040 / 0.030