PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/07-05:57:40
G02     34.5           54.5                3.7 +/-    0.86       4.5 +/-    0.86  0.020 / 0.030
G05     137.7          61.8                6.9 +/-    0.61       7.7 +/-    0.61  0.030 / 0.020
G06     52.9           18.0                2.0 +/-    3.99       4.6 +/-    3.99  0.020 / 0.030
G12     204.1          69.7                4.6 +/-    0.33       4.9 +/-    0.33  0.030 / 0.030
G19     99.4           10.4                5.5 +/-    1.70      15.3 +/-    1.70  0.140 / 0.250
G20     201.0          19.7                4.7 +/-    2.25      10.4 +/-    2.25  0.260 / 0.150
G25     299.3          52.0                3.7 +/-    1.76       4.6 +/-    1.76  0.250 / 0.280
G29     307.0          27.9                1.2 +/-    1.43       2.2 +/-    1.43  0.250 / 0.200