PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/31-02:58:00
G10     250.8          28.2               11.3 +/-    1.04      20.6 +/-    1.04  0.040 / 0.050
G13     52.8           28.8                6.2 +/-    0.79      11.2 +/-    0.79  0.040 / 0.060
G15     83.7           56.8                8.3 +/-    0.52       9.7 +/-    0.52  0.060 / 0.190
G16     297.7          14.8                5.5 +/-    2.42      13.8 +/-    2.42  0.060 / 0.160
G20     270.5          51.0                8.0 +/-    0.92      10.0 +/-    0.92  0.070 / 0.140
G21     335.3          60.5               -2.9 +/-    0.51      -3.3 +/-    0.51  0.070 / 0.140
G26     269.4          15.3                9.7 +/-    1.28      23.9 +/-    1.28  0.020 / 0.050
G29     162.4          47.3                8.4 +/-    1.15      11.0 +/-    1.15  0.030 / 0.040