PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/11-05:12:30
G10     248.7          24.9                8.6 +/-    1.33      16.8 +/-    1.33  0.110 / 0.270
G13     55.9           31.4                5.9 +/-    1.63      10.1 +/-    1.63  0.110 / 0.350
G15     90.7           57.6                6.9 +/-    0.66       8.0 +/-    0.66  0.030 / 0.040
G16     297.3          15.6                3.4 +/-    1.01       8.4 +/-    1.01  0.030 / 0.050
G20     300.3          69.4                5.5 +/-    0.62       5.9 +/-    0.62  0.030 / 0.030
G21     330.6          58.4                5.5 +/-    1.11       6.3 +/-    1.11  0.030 / 0.040
G26     268.6          16.6                7.2 +/-    2.41      17.3 +/-    2.41  0.040 / 0.050
G29     164.5          53.0                7.0 +/-    0.60       8.6 +/-    0.60  0.050 / 0.050