PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-03:58:10
G10     242.9          19.5               10.3 +/-    1.83      22.9 +/-    1.83  0.120 / 0.550
G13     63.8           34.5                7.5 +/-    0.68      12.1 +/-    0.68  0.130 / 0.640
G15     107.0          57.0                9.1 +/-    0.45      10.7 +/-    0.45  0.040 / 0.060
G16     304.4          15.2                5.9 +/-    3.41      14.5 +/-    3.41  0.040 / 0.050
G20     269.1          59.2               10.8 +/-    0.90      12.3 +/-    0.90  0.160 / 0.190
G21     322.2          53.1               10.4 +/-    1.28      12.6 +/-    1.28  0.080 / 0.250
G26     275.9          19.0                8.9 +/-    1.31      20.1 +/-    1.31  0.060 / 0.120
G29     161.9          61.8                9.7 +/-    0.56      10.9 +/-    0.56  0.060 / 0.120