PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/10-18:12:50
G02     33.9           55.2               14.5 +/-    0.80      17.3 +/-    0.80  0.040 / 0.050
G05     146.8          61.8               15.2 +/-    0.41      17.0 +/-    0.41  0.040 / 0.050
G06     54.9           15.1               12.8 +/-    2.47      31.8 +/-    2.47  0.020 / 0.030
G12     197.7          65.7               13.8 +/-    0.27      15.0 +/-    0.27  0.030 / 0.030
G20     198.3          28.8               16.6 +/-    1.45      29.8 +/-    1.45  0.030 / 0.040
G25     289.8          57.3               13.8 +/-    0.69      16.1 +/-    0.69  0.030 / 0.030
G29     310.4          32.5               12.9 +/-    0.88      21.4 +/-    0.88  0.130 / 0.270