PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/10-20:42:10
G02     41.7           48.7               11.9 +/-    0.71      15.3 +/-    0.71  0.040 / 0.060
G05     121.8          69.7               13.8 +/-    0.42      14.6 +/-    0.42  0.040 / 0.060
G12     189.5          53.2               14.4 +/-    1.01      17.5 +/-    1.01  0.030 / 0.060
G20     199.8          40.1               15.6 +/-    1.99      22.6 +/-    1.99  0.050 / 0.050
G25     265.1          60.5               13.5 +/-    0.61      15.2 +/-    0.61  0.030 / 0.040
G29     316.8          39.4               12.6 +/-    1.59      18.5 +/-    1.59  0.040 / 0.040