PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-22:12:50
G10     263.9          37.7                9.8 +/-    1.02      14.8 +/-    1.02  0.110 / 0.410
G13     43.1           19.6                7.5 +/-    1.03      16.5 +/-    1.03  0.110 / 0.380
G15     63.1           51.4                9.8 +/-    0.84      12.2 +/-    0.84  0.160 / 0.380
G16     282.2          13.5                8.2 +/-    1.11      21.1 +/-    1.11  0.130 / 0.260
G20     292.2          58.8                9.8 +/-    0.74      11.3 +/-    0.74  0.060 / 0.090
G21     354.1          69.1                9.1 +/-    0.48       9.7 +/-    0.48  0.060 / 0.090
G24     124.3          12.2                9.4 +/-    2.35      25.0 +/-    2.35  0.050 / 0.050
G27     320.3          15.8                5.7 +/-    2.59      14.0 +/-    2.59  0.040 / 0.040
G29     166.6          34.8                9.3 +/-    1.47      14.9 +/-    1.47  0.090 / 0.240