PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/29-20:27:50
G10     244.4          23.0               13.9 +/-    3.01      28.4 +/-    3.01  0.040 / 0.070
G13     60.4           32.3               10.0 +/-    1.22      16.7 +/-    1.22  0.040 / 0.070
G15     103.5          57.8               12.0 +/-    0.71      14.0 +/-    0.71  0.170 / 0.620
G16     302.9          15.4                7.9 +/-    3.00      19.4 +/-    3.00  0.160 / 0.720
G20     261.1          46.3               12.3 +/-    1.09      16.3 +/-    1.09  0.060 / 0.130
G21     324.8          54.2               11.5 +/-    1.01      13.8 +/-    1.01  0.060 / 0.120
G26     275.4          18.0               11.6 +/-    1.84      26.8 +/-    1.84  0.030 / 0.050
G29     160.7          59.0               12.7 +/-    0.44      14.5 +/-    0.44  0.030 / 0.040