PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/12-16:28:00
G08     293.4          23.5                7.4 +/-    1.02      15.0 +/-    1.02  0.060 / 0.120
G10     10.4           62.6                7.6 +/-    0.72       8.5 +/-    0.72  0.080 / 0.090
G14     227.9          41.4                8.5 +/-    1.66      12.1 +/-    1.66  0.080 / 0.130
G20     68.0           49.8                7.2 +/-    0.74       9.1 +/-    0.74  0.060 / 0.160
G21     146.2          40.4                9.1 +/-    0.63      13.1 +/-    0.63  0.030 / 0.030
G24     58.0           26.7                7.0 +/-    1.97      13.2 +/-    1.97  0.030 / 0.030
G27     255.0          32.6                6.5 +/-    2.29      10.8 +/-    2.29  0.080 / 0.150
G32     244.7          69.1                7.9 +/-    0.62       8.4 +/-    0.62  0.080 / 0.130