PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/11-12:12:50
G02     200.7          15.3                5.9 +/-    1.12      14.5 +/-    1.12  0.020 / 0.030
G06     170.1          51.0                9.3 +/-    0.62      11.6 +/-    0.62  0.030 / 0.040
G13     228.2          15.6                5.8 +/-    2.06      14.3 +/-    2.06  0.150 / 0.180
G17     14.0           64.2                6.1 +/-    0.57       6.7 +/-    0.57  0.120 / 0.150
G19     317.5          72.1                5.8 +/-    1.34       6.1 +/-    1.34  0.050 / 0.050
G24     312.3          26.1                4.7 +/-    1.18       9.0 +/-    1.18  0.050 / 0.050
G28     78.3           47.2                6.6 +/-    0.83       8.7 +/-    0.83  0.050 / 0.030
G30     157.1          18.7                7.6 +/-    1.67      17.3 +/-    1.67  0.050 / 0.040