PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/04-14:12:30
G02     216.4          56.8                7.6 +/-    1.07       8.8 +/-    1.07  0.070 / 0.080
G06     58.0           73.8                5.6 +/-    0.46       5.8 +/-    0.46  0.060 / 0.060
G12     317.9          35.7                5.6 +/-    1.42       8.8 +/-    1.42  0.060 / 0.090
G17     54.9           34.8                6.3 +/-    1.82      10.0 +/-    1.82  0.060 / 0.080
G19     40.3           48.0                5.7 +/-    1.06       7.4 +/-    1.06  0.030 / 0.020
G24     267.3          41.1                7.9 +/-    1.46      11.3 +/-    1.46  0.030 / 0.020
G28     120.2          20.2                5.7 +/-    1.59      12.5 +/-    1.59  0.070 / 0.110