PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/29-18:27:50
G02     68.7           25.4               17.9 +/-    2.44      34.6 +/-    2.44  0.090 / 0.090
G05     49.0           54.7               16.4 +/-    0.81      19.6 +/-    0.81  0.080 / 0.070
G12     183.2          21.3               17.2 +/-    3.10      36.6 +/-    3.10  0.120 / 0.220
G13     120.6          22.8               19.4 +/-    1.45      40.0 +/-    1.45  0.120 / 0.160
G15     157.5          21.1               19.6 +/-    1.65      41.9 +/-    1.65  0.080 / 0.240
G18     221.5          11.0               -2.0 +/-   23.95      -5.5 +/-   23.95  0.090 / 0.230
G20     216.9          72.8               16.3 +/-    0.54      16.9 +/-    0.54  0.040 / 0.040
G21     281.0          25.7               14.5 +/-    2.11      28.0 +/-    2.11  0.060 / 0.040
G25     219.8          41.7               16.6 +/-    1.77      23.5 +/-    1.77  0.040 / 0.030
G29     342.6          70.2               18.4 +/-    0.62      19.4 +/-    0.62  0.040 / 0.030