PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/15-21:57:40
G10     257.1          33.2               10.1 +/-    1.29      16.6 +/-    1.29  0.130 / 0.440
G13     47.2           24.4                7.0 +/-    0.73      13.9 +/-    0.73  0.120 / 0.460
G15     73.1           55.3                8.5 +/-    0.41      10.1 +/-    0.41  0.120 / 0.400
G16     288.7          15.0                6.6 +/-    3.63      16.5 +/-    3.63  0.080 / 0.120
G20     280.8          55.3                9.9 +/-    0.85      11.8 +/-    0.85  0.070 / 0.110
G21     342.7          64.4                6.9 +/-    1.25       7.6 +/-    1.25  0.040 / 0.060
G26     261.7          12.5               10.8 +/-    2.40      28.4 +/-    2.40  0.050 / 0.050
G27     322.2          10.3              -16.3 +/-   13.88     -45.3 +/-   13.88  0.060 / 0.230
G29     165.3          42.1               10.8 +/-    1.41      15.1 +/-    1.41  0.060 / 0.180