PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/09-15:42:00
G02     42.3           47.7                8.4 +/-    0.47      10.9 +/-    0.47  0.040 / 0.050
G05     117.9          70.3               10.3 +/-    0.48      10.9 +/-    0.48  0.030 / 0.040
G12     187.1          51.4               10.9 +/-    2.24      13.5 +/-    2.24  0.050 / 0.050
G25     266.3          59.8                8.3 +/-    0.64       9.5 +/-    0.64  0.060 / 0.070
G29     316.2          37.9                7.4 +/-    0.72      11.2 +/-    0.72  0.020 / 0.030