PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/31-00:12:50
G05     50.3           15.6                8.7 +/-    1.81      21.4 +/-    1.81  0.110 / 0.240
G10     239.8          15.4               13.5 +/-    3.21      33.2 +/-    3.21  0.120 / 0.250
G13     70.4           36.7                9.7 +/-    0.65      14.9 +/-    0.65  0.030 / 0.040
G15     119.5          55.0               13.3 +/-    0.89      15.8 +/-    0.89  0.020 / 0.040
G16     310.8          13.1                8.3 +/-    1.68      21.6 +/-    1.68  0.050 / 0.080
G18     250.3          45.0               12.7 +/-    1.60      17.1 +/-    1.60  0.050 / 0.070
G20     33.9           59.9               11.0 +/-    0.79      12.5 +/-    0.79  0.120 / 0.230
G21     317.7          50.5               10.7 +/-    0.68      13.4 +/-    0.68  0.090 / 0.160
G26     283.6          19.4                8.3 +/-    2.60      18.5 +/-    2.60  0.090 / 0.360
G29     158.6          63.9               11.8 +/-    0.99      13.0 +/-    0.99  0.110 / 0.340