PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/11-21:13:00
G02     54.6           37.9               11.6 +/-    1.20      17.6 +/-    1.20  0.070 / 0.080
G05     72.1           68.5               12.1 +/-    0.69      12.9 +/-    0.69  0.070 / 0.060
G12     185.5          36.4               15.1 +/-    0.99      23.3 +/-    0.99  0.050 / 0.070
G13     133.0          12.2               21.0 +/-    4.21      55.8 +/-    4.21  0.040 / 0.080
G20     204.7          56.6               14.9 +/-    0.48      17.5 +/-    0.48  0.080 / 0.070
G21     267.6          14.8               13.5 +/-    3.20      33.6 +/-    3.20  0.080 / 0.060
G25     235.0          54.0               13.1 +/-    2.63      15.8 +/-    2.63  0.160 / 0.450
G29     327.1          52.7               11.5 +/-    1.00      14.1 +/-    1.00  0.210 / 0.330