PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/19-21:27:40
G10     251.5          29.0               12.9 +/-    1.93      23.1 +/-    1.93  0.040 / 0.050
G13     52.0           28.1                8.2 +/-    1.39      14.8 +/-    1.39  0.040 / 0.050
G15     84.8           57.6               10.9 +/-    0.58      12.7 +/-    0.58  0.140 / 1.110
G16     294.7          15.7                8.7 +/-    5.50      21.3 +/-    5.50  0.160 / 0.890
G20     271.9          51.7               12.1 +/-    1.27      14.9 +/-    1.27  0.060 / 0.170
G21     334.5          60.1               11.8 +/-    0.64      13.4 +/-    0.64  0.060 / 0.170
G26     267.2          15.1               12.2 +/-    1.42      30.4 +/-    1.42  0.040 / 0.050
G29     163.8          49.0               11.7 +/-    0.88      14.9 +/-    0.88  0.040 / 0.060