PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/09-17:42:10
G02     40.2           49.7                8.0 +/-    0.49      10.1 +/-    0.49  0.030 / 0.030
G05     115.1          69.8                9.8 +/-    0.76      10.4 +/-    0.76  0.030 / 0.040
G12     185.7          51.0               10.9 +/-    1.46      13.5 +/-    1.46  0.050 / 0.060
G25     270.4          59.3               10.5 +/-    0.60      12.0 +/-    0.60  0.040 / 0.060
G29     315.4          36.8                7.7 +/-    1.08      11.9 +/-    1.08  0.050 / 0.060