PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/28-13:57:30
G02     61.0           30.9                5.3 +/-    2.83       9.1 +/-    2.83  0.030 / 0.040
G05     58.4           61.7                6.5 +/-    0.46       7.3 +/-    0.46  0.030 / 0.030
G12     186.2          33.2                7.3 +/-    1.48      12.0 +/-    1.48  0.140 / 0.300
G13     129.1          15.4                8.4 +/-    2.71      20.7 +/-    2.71  0.200 / 0.240
G15     162.5          13.0                9.3 +/-    2.64      24.3 +/-    2.64  0.110 / 0.090
G20     209.2          58.6                8.5 +/-    0.65       9.8 +/-    0.65  0.070 / 0.090
G21     273.3          21.5                4.6 +/-    2.73       9.8 +/-    2.73  0.040 / 0.050
G25     235.0          51.3                6.6 +/-    2.06       8.2 +/-    2.06  0.040 / 0.040
G29     333.3          59.8                3.4 +/-    0.58       3.9 +/-    0.58  0.230 / 0.420