PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-04:43:00
G10     259.7          33.4                8.5 +/-    1.28      13.8 +/-    1.28  0.110 / 0.320
G13     45.9           23.7                5.4 +/-    2.75      10.8 +/-    2.75  0.150 / 0.330
G15     68.6           53.7                7.4 +/-    0.35       8.9 +/-    0.35  0.040 / 0.030
G16     285.0          14.2                8.0 +/-    1.07      20.2 +/-    1.07  0.050 / 0.030
G20     314.0          67.8                6.9 +/-    0.75       7.4 +/-    0.75  0.110 / 0.210
G21     347.1          66.8                6.9 +/-    0.44       7.4 +/-    0.44  0.090 / 0.220
G24     125.8          10.0               -8.7 +/-   30.45     -24.2 +/-   30.45  0.080 / 0.190
G26     257.4          11.2                7.8 +/-   14.50      21.2 +/-   14.50  0.130 / 0.220
G27     321.2          13.4                4.7 +/-    1.91      12.0 +/-    1.91  0.220 / 0.360
G29     167.3          39.5                9.3 +/-    1.01      13.7 +/-    1.01  0.220 / 0.340