PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-09:58:00
G02     204.1          38.3                4.7 +/-    2.27       7.1 +/-    2.27  0.050 / 0.100
G06     149.4          72.8                5.3 +/-    0.69       5.5 +/-    0.69  0.050 / 0.080
G12     309.4          20.1                4.2 +/-    2.23       9.2 +/-    2.23  0.060 / 0.090
G17     38.3           47.2                3.3 +/-    0.34       4.3 +/-    0.34  0.060 / 0.080
G19     12.1           62.1                4.2 +/-    0.63       4.7 +/-    0.63  0.050 / 0.110
G24     295.2          38.3                4.6 +/-    1.69       6.8 +/-    1.69  0.050 / 0.120
G28     101.6          35.9                5.1 +/-    0.81       8.0 +/-    0.81  0.130 / 0.180