PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/08-19:12:30
G02     311.0          80.3               11.2 +/-    0.54      11.3 +/-    0.54  0.080 / 0.150
G05     168.9          28.3               15.6 +/-    1.91      28.3 +/-    1.91  0.080 / 0.190
G06     41.3           42.4                9.6 +/-    0.24      13.5 +/-    0.24  0.030 / 0.040
G12     314.2          69.8                9.8 +/-    0.72      10.3 +/-    0.72  0.030 / 0.030
G17     85.7           10.4               11.3 +/-    1.94      31.3 +/-    1.94  0.080 / 0.120
G19     74.4           26.9               10.5 +/-    0.70      19.6 +/-    0.70  0.070 / 0.110
G24     231.9          25.0               13.9 +/-    1.29      27.3 +/-    1.29  0.110 / 0.320
G25     317.2          31.5               12.7 +/-    1.46      21.6 +/-    1.46  0.080 / 0.360