PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/22-20:58:00
G10     244.9          23.4               13.2 +/-    1.18      26.7 +/-    1.18  0.040 / 0.060
G13     59.7           32.1                8.0 +/-    1.00      13.4 +/-    1.00  0.060 / 0.040
G15     101.8          57.9               12.4 +/-    0.76      14.3 +/-    0.76  0.070 / 0.140
G16     302.5          15.5                7.7 +/-    2.24      18.9 +/-    2.24  0.050 / 0.150
G20     261.7          46.5               12.9 +/-    3.60      17.0 +/-    3.60  0.030 / 0.040
G21     325.5          54.6               10.9 +/-    0.73      13.0 +/-    0.73  0.030 / 0.040
G26     274.9          17.8               10.3 +/-    1.46      23.9 +/-    1.46  0.120 / 0.430
G29     160.9          58.2               12.2 +/-    0.51      14.1 +/-    0.51  0.130 / 0.400