PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/02/24-07:57:30
G02     61.3           30.3                4.8 +/-    0.84       8.4 +/-    0.84  0.030 / 0.020
G05     56.4           59.3                5.3 +/-    0.66       6.0 +/-    0.66  0.020 / 0.030
G12     186.0          33.1                6.1 +/-    1.10      10.1 +/-    1.10  0.050 / 0.090
G13     128.5          15.5                7.5 +/-    2.04      18.3 +/-    2.04  0.050 / 0.090
G15     162.3          13.2                7.2 +/-    4.66      18.8 +/-    4.66  0.050 / 0.050
G20     211.1          54.5                8.0 +/-    0.59       9.6 +/-    0.59  0.040 / 0.060
G21     272.4          19.3                4.9 +/-    1.94      10.9 +/-    1.94  0.120 / 0.190
G25     237.3          51.6                6.3 +/-    3.25       7.8 +/-    3.25  0.100 / 0.310
G29     329.7          56.3                4.1 +/-    0.36       4.8 +/-    0.36  0.220 / 0.390