PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/09-13:57:40
G01     317.8          20.7                3.8 +/-    3.02       8.1 +/-    3.02  0.120 / 0.260
G08     257.8          11.4                5.2 +/-    5.12      14.1 +/-    5.12  0.130 / 0.230
G10     84.8           51.6                6.0 +/-    0.88       7.4 +/-    0.88  0.040 / 0.060
G11     302.4          22.6                4.7 +/-    1.44       9.7 +/-    1.44  0.030 / 0.050
G14     301.9          70.1                4.1 +/-    0.48       4.3 +/-    0.48  0.150 / 0.390
G22     303.0          15.2                1.8 +/-    1.60       4.4 +/-    1.60  0.220 / 0.370
G25     99.0           10.0               -8.1 +/-   34.22     -22.7 +/-   34.22  0.040 / 0.040
G31     174.0          47.0                7.1 +/-    0.79       9.3 +/-    0.79  0.040 / 0.040
G32     15.9           64.2                4.0 +/-    0.56       4.4 +/-    0.56  0.240 / 0.330