PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/11-18:28:10
G02     61.2           33.1               10.9 +/-    0.55      17.9 +/-    0.55  0.050 / 0.100
G05     53.8           59.4                9.6 +/-    0.39      11.0 +/-    0.39  0.050 / 0.080
G12     181.4          25.1               17.3 +/-    1.73      33.7 +/-    1.73  0.030 / 0.040
G13     123.9          18.4               16.7 +/-    1.61      38.2 +/-    1.61  0.030 / 0.040
G21     275.3          20.1               12.1 +/-    2.23      26.6 +/-    2.23  0.050 / 0.170
G25     227.2          47.8               14.6 +/-    0.81      18.9 +/-    0.81  0.080 / 0.120
G29     330.9          58.4                9.2 +/-    0.62      10.6 +/-    0.62  0.060 / 0.080