PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/25-06:12:30
G02     23.4           64.0                2.0 +/-    0.48       2.1 +/-    0.48  0.020 / 0.040
G05     152.6          51.0                6.0 +/-    0.51       7.5 +/-    0.51  0.030 / 0.050
G06     47.0           27.6                1.0 +/-    1.70       1.9 +/-    1.70  0.020 / 0.020
G12     245.0          78.8                3.9 +/-    0.33       3.9 +/-    0.33  0.020 / 0.020
G19     90.0           17.2                4.3 +/-    1.45      10.1 +/-    1.45  0.120 / 0.120
G24     217.2          11.5                3.5 +/-    2.12       9.4 +/-    2.12  0.090 / 0.130
G25     310.9          43.0                4.3 +/-    0.66       6.0 +/-    0.66  0.040 / 0.030
G29     298.9          20.1                1.7 +/-    1.79       3.7 +/-    1.79  0.030 / 0.030