PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/26-15:13:10
G02     58.5           34.3                7.3 +/-    1.46      11.8 +/-    1.46  0.100 / 0.080
G05     61.7           65.0                8.1 +/-    0.52       8.8 +/-    0.52  0.060 / 0.070
G12     183.7          31.7                8.2 +/-    1.54      13.8 +/-    1.54  0.080 / 0.070
G13     127.7          15.2               10.5 +/-    2.77      25.9 +/-    2.77  0.090 / 0.070
G15     166.3          10.8               -4.6 +/-   21.58     -12.5 +/-   21.58  0.130 / 0.210
G21     271.9          18.2                8.2 +/-    1.54      18.8 +/-    1.54  0.210 / 0.310
G25     230.3          51.1                9.4 +/-    2.98      11.7 +/-    2.98  0.040 / 0.040
G29     328.6          54.6                7.8 +/-    0.59       9.3 +/-    0.59  0.030 / 0.030