PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/16-16:28:10
G01     294.0          39.3                7.4 +/-    2.37      10.9 +/-    2.37  0.070 / 0.130
G03     311.6          17.8                7.1 +/-    1.97      16.5 +/-    1.97  0.070 / 0.150
G10     117.8          31.0               10.6 +/-    0.68      18.1 +/-    0.68  0.030 / 0.030
G11     270.8          26.2                8.6 +/-    1.28      16.4 +/-    1.28  0.030 / 0.030
G14     17.7           61.1                7.9 +/-    0.71       8.9 +/-    0.71  0.060 / 0.100
G22     313.6          37.7                7.7 +/-    1.51      11.6 +/-    1.51  0.050 / 0.080
G25     70.0           19.0               10.3 +/-    1.84      23.2 +/-    1.84  0.040 / 0.070
G26     157.6          11.6               10.0 +/-   23.14      27.0 +/-   23.14  0.040 / 0.060
G31     137.1          77.6                9.3 +/-    0.88       9.5 +/-    0.88  0.060 / 0.100
G32     49.3           43.1                7.3 +/-    0.64      10.1 +/-    0.64  0.060 / 0.100