PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/30-16:28:10
G10     249.9          28.0                9.6 +/-    1.71      17.6 +/-    1.71  0.150 / 0.570
G13     53.7           29.1                9.5 +/-    1.42      17.1 +/-    1.42  0.170 / 0.530
G15     84.8           56.7               10.7 +/-    0.84      12.5 +/-    0.84  0.040 / 0.050
G16     295.8          16.0                6.5 +/-    3.85      15.8 +/-    3.85  0.050 / 0.050
G20     271.0          52.3               10.1 +/-    2.41      12.4 +/-    2.41  0.030 / 0.050
G21     333.2          59.2                9.1 +/-    0.74      10.4 +/-    0.74  0.030 / 0.050
G26     269.1          15.8                7.4 +/-    4.27      18.2 +/-    4.27  0.070 / 0.150
G29     163.6          52.2               12.2 +/-    0.67      15.0 +/-    0.67  0.090 / 0.130