PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/28-03:42:50
G08     302.1          21.2                8.8 +/-    2.11      18.8 +/-    2.11  0.060 / 0.080
G10     356.3          62.4                6.7 +/-    0.60       7.5 +/-    0.60  0.050 / 0.080
G14     224.0          40.2               10.2 +/-    1.35      14.8 +/-    1.35  0.070 / 0.100
G20     55.3           55.8                7.8 +/-    0.40       9.2 +/-    0.40  0.070 / 0.110
G21     142.9          47.3               10.8 +/-    0.86      14.1 +/-    0.86  0.030 / 0.040
G24     62.7           28.1                5.7 +/-    0.74      10.5 +/-    0.74  0.030 / 0.040
G27     262.8          34.9               10.9 +/-    1.38      17.3 +/-    1.38  0.050 / 0.130
G32     233.5          60.1               10.4 +/-    0.67      11.8 +/-    0.67  0.050 / 0.100