PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/26-16:58:00
G02     30.6           57.9               11.2 +/-    0.65      12.9 +/-    0.65  0.040 / 0.040
G05     150.7          58.2               13.8 +/-    0.31      16.0 +/-    0.31  0.050 / 0.050
G06     52.4           18.8               11.2 +/-    1.95      25.4 +/-    1.95  0.030 / 0.040
G12     204.5          70.5               13.5 +/-    0.80      14.3 +/-    0.80  0.020 / 0.030
G19     99.1           9.6                13.1 +/-    1.80      36.8 +/-    1.80  0.020 / 0.030
G20     198.1          24.2               13.3 +/-    3.56      26.5 +/-    3.56  0.030 / 0.030
G25     297.6          54.4               12.0 +/-    2.86      14.4 +/-    2.86  0.240 / 0.190
G29     307.8          30.0               12.3 +/-    0.84      21.5 +/-    0.84  0.370 / 0.280