PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-18:28:10
G02     237.7          72.6               15.0 +/-    0.47      15.6 +/-    0.47  0.030 / 0.050
G05     174.8          13.5               15.2 +/-    1.75      39.3 +/-    1.75  0.040 / 0.050
G06     41.0           58.3               12.9 +/-    0.70      14.8 +/-    0.70  0.200 / 0.320
G12     321.9          53.0               13.1 +/-    0.70      15.9 +/-    0.70  0.100 / 0.330
G17     72.7           19.9               10.9 +/-    0.92      24.0 +/-    0.92  0.070 / 0.310
G19     59.2           36.8               11.1 +/-    1.00      17.0 +/-    1.00  0.060 / 0.260
G24     247.2          35.2               14.7 +/-    0.98      23.3 +/-    0.98  0.070 / 0.100
G25     317.0          16.9               13.6 +/-    3.44      32.4 +/-    3.44  0.060 / 0.110