PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/16-02:28:00
G08     303.4          20.6                6.7 +/-    1.23      14.5 +/-    1.23  0.030 / 0.030
G10     355.2          62.4                7.8 +/-    0.98       8.7 +/-    0.98  0.030 / 0.030
G14     223.5          39.3                9.8 +/-    1.32      14.3 +/-    1.32  0.050 / 0.070
G20     54.1           56.2                8.2 +/-    1.10       9.7 +/-    1.10  0.050 / 0.060
G21     142.6          48.2                9.7 +/-    1.40      12.5 +/-    1.40  0.080 / 0.120
G24     63.6           28.4                6.0 +/-    1.84      10.9 +/-    1.84  0.120 / 0.150
G27     263.4          35.2               10.3 +/-    1.55      16.2 +/-    1.55  0.050 / 0.060
G32     232.9          60.2                8.9 +/-    1.70      10.1 +/-    1.70  0.050 / 0.060