PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-02:57:50
G10     292.6          50.9               10.1 +/-    1.24      12.6 +/-    1.24  0.040 / 0.040
G15     46.7           30.8                6.1 +/-    0.66      10.5 +/-    0.66  0.050 / 0.050
G20     342.1          65.2                7.9 +/-    0.77       8.7 +/-    0.77  0.080 / 0.100
G21     80.1           76.1               10.3 +/-    0.86      10.6 +/-    0.86  0.100 / 0.110
G24     102.3          24.8                8.2 +/-    1.34      16.2 +/-    1.34  0.050 / 0.040
G27     305.7          31.7                7.6 +/-    1.71      12.9 +/-    1.71  0.050 / 0.040
G29     167.1          10.1                9.6 +/-    2.12      26.7 +/-    2.12  0.040 / 0.100
G32     209.1          25.7               11.2 +/-    2.08      21.6 +/-    2.08  0.050 / 0.100