PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-18:12:50
G02     58.9           33.4               12.5 +/-    1.64      20.4 +/-    1.64  0.070 / 0.050
G05     63.6           65.7               13.3 +/-    0.65      14.4 +/-    0.65  0.050 / 0.060
G12     185.7          33.6               14.8 +/-    1.29      24.1 +/-    1.29  0.120 / 0.210
G13     130.4          14.6               15.5 +/-    2.28      38.9 +/-    2.28  0.140 / 0.190
G15     164.2          11.3                9.9 +/-   23.83      26.9 +/-   23.83  0.060 / 0.090
G20     207.2          59.4               16.0 +/-    1.11      18.3 +/-    1.11  0.050 / 0.100
G21     271.0          18.3               14.8 +/-    1.39      34.0 +/-    1.39  0.030 / 0.020
G25     233.3          51.8               15.6 +/-    2.15      19.3 +/-    2.15  0.030 / 0.030
G29     331.6          58.0               12.3 +/-    1.24      14.2 +/-    1.24  0.040 / 0.050