PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/12-22:27:50
G08     302.8          20.7                9.2 +/-    1.41      20.0 +/-    1.41  0.040 / 0.060
G10     357.3          62.4                9.0 +/-    0.64      10.1 +/-    0.64  0.050 / 0.060
G14     223.9          38.2               12.8 +/-    1.79      19.2 +/-    1.79  0.090 / 0.130
G20     57.0           54.9               10.2 +/-    0.65      12.1 +/-    0.65  0.080 / 0.140
G21     143.1          47.8               12.5 +/-    0.68      16.2 +/-    0.68  0.100 / 0.280
G24     63.6           28.7                9.8 +/-    1.29      17.6 +/-    1.29  0.100 / 0.280
G27     262.0          35.0               12.6 +/-    2.31      20.0 +/-    2.31  0.030 / 0.030
G32     234.2          62.6               11.2 +/-    1.39      12.4 +/-    1.39  0.030 / 0.030