PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/06-18:12:30
G02     287.1          80.3                8.6 +/-    1.11       8.7 +/-    1.11  0.040 / 0.140
G05     167.7          26.3               10.9 +/-    2.24      20.6 +/-    2.24  0.040 / 0.130
G06     40.7           45.0                7.1 +/-    0.62       9.5 +/-    0.62  0.030 / 0.050
G12     319.1          68.3                6.0 +/-    0.56       6.4 +/-    0.56  0.030 / 0.040
G17     80.6           14.8                7.6 +/-    2.02      19.0 +/-    2.02  0.050 / 0.040
G19     66.1           34.4                8.5 +/-    0.53      13.6 +/-    0.53  0.040 / 0.030
G24     232.6          27.3               13.1 +/-    1.81      24.2 +/-    1.81  0.090 / 0.180
G25     317.7          22.9                6.8 +/-    1.20      13.9 +/-    1.20  0.080 / 0.160