PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/26-21:28:00
G10     264.0          37.7               10.4 +/-    0.70      15.7 +/-    0.70  0.050 / 0.050
G13     43.1           19.6                8.4 +/-    1.27      18.8 +/-    1.27  0.040 / 0.050
G15     63.4           51.7               10.6 +/-    0.65      13.1 +/-    0.65  0.130 / 0.360
G20     292.6          59.0               10.5 +/-    0.89      12.0 +/-    0.89  0.130 / 0.380
G21     354.1          69.1                9.3 +/-    0.32       9.8 +/-    0.32  0.130 / 0.350
G24     124.4          12.2               11.1 +/-    1.77      29.6 +/-    1.77  0.110 / 0.390
G27     320.3          15.9                5.7 +/-    1.20      14.0 +/-    1.20  0.080 / 0.290
G29     166.7          35.0               11.6 +/-    1.38      18.4 +/-    1.38  0.080 / 0.270