PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/29-01:28:10
G10     265.8          36.7                8.9 +/-    1.46      13.7 +/-    1.46  0.170 / 0.360
G13     42.9           20.4                7.7 +/-    1.55      16.9 +/-    1.55  0.150 / 0.450
G15     62.4           51.7                7.5 +/-    0.84       9.2 +/-    0.84  0.250 / 0.250
G16     281.4          11.8                8.9 +/-    1.73      23.8 +/-    1.73  0.190 / 0.340
G18     296.1          63.1                8.5 +/-    0.60       9.4 +/-    0.60  0.070 / 0.050
G20     54.6           34.1                8.6 +/-    1.75      13.8 +/-    1.75  0.080 / 0.080
G21     360.0          71.3                8.6 +/-    0.82       9.0 +/-    0.82  0.040 / 0.040
G24     122.2          13.3                9.5 +/-    2.30      24.6 +/-    2.30  0.050 / 0.040
G27     318.2          19.6                7.9 +/-    1.81      17.5 +/-    1.81  0.110 / 0.230
G29     167.2          30.2                9.0 +/-    0.84      15.8 +/-    0.84  0.130 / 0.150