PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-04:27:50
G02     35.8           53.3                4.0 +/-    1.36       4.9 +/-    1.36  0.030 / 0.030
G05     133.9          63.3                5.2 +/-    0.34       5.8 +/-    0.34  0.020 / 0.030
G06     54.1           15.9                2.3 +/-    3.55       5.7 +/-    3.55  0.030 / 0.030
G12     200.2          67.5                5.2 +/-    0.58       5.6 +/-    0.58  0.030 / 0.040
G19     100.7          9.7                 4.8 +/-    1.19      13.4 +/-    1.19  0.040 / 0.060
G20     205.2          11.3               -3.9 +/-   14.63     -10.7 +/-   14.63  0.050 / 0.050
G25     296.8          53.2                4.4 +/-    3.73       5.3 +/-    3.73  0.240 / 0.250
G29     308.0          28.7                2.3 +/-    1.75       4.2 +/-    1.75  0.220 / 0.330