PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/05-07:57:30
G02     33.6           55.4                4.0 +/-    0.39       4.8 +/-    0.39  0.040 / 0.040
G05     140.8          60.6                7.4 +/-    1.35       8.4 +/-    1.35  0.020 / 0.040
G06     51.8           20.3                1.7 +/-    1.01       3.8 +/-    1.01  0.040 / 0.050
G12     207.4          71.2                5.9 +/-    0.42       6.2 +/-    0.42  0.040 / 0.040
G19     98.6           10.8                4.7 +/-    1.57      12.8 +/-    1.57  0.110 / 0.320
G20     200.3          19.9                6.4 +/-    1.36      14.0 +/-    1.36  0.090 / 0.300
G25     300.7          51.4                3.3 +/-    1.04       4.1 +/-    1.04  0.050 / 0.050
G29     306.7          27.9                0.7 +/-    1.28       1.3 +/-    1.28  0.040 / 0.050