PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/11-23:28:00
G05     49.7           14.3                6.4 +/-    2.00      16.3 +/-    2.00  0.220 / 0.300
G10     237.7          15.9               11.3 +/-    1.83      27.6 +/-    1.83  0.120 / 0.260
G13     71.3           35.1                8.5 +/-    1.19      13.4 +/-    1.19  0.040 / 0.080
G15     118.7          54.1               10.8 +/-    0.56      12.9 +/-    0.56  0.050 / 0.060
G16     312.5          12.9                6.0 +/-    2.24      15.6 +/-    2.24  0.080 / 0.120
G20     250.8          38.8               10.0 +/-    1.74      14.8 +/-    1.74  0.070 / 0.090
G21     315.8          48.3                8.1 +/-    1.10      10.4 +/-    1.10  0.030 / 0.040
G26     285.3          19.7                6.3 +/-    1.84      13.9 +/-    1.84  0.030 / 0.040
G29     154.6          68.3                9.9 +/-    0.49      10.6 +/-    0.49  0.170 / 0.370