PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/07/15-00:27:50
G10     265.8          38.7                9.2 +/-    1.48      13.6 +/-    1.48  0.180 / 0.210
G13     42.2           18.4                9.0 +/-    3.46      20.6 +/-    3.46  0.150 / 0.230
G15     60.2           49.3                9.8 +/-    1.23      12.5 +/-    1.23  0.080 / 0.090
G16     281.2          12.8                7.7 +/-    2.85      20.2 +/-    2.85  0.070 / 0.080
G20     294.6          59.3                9.7 +/-    1.06      11.1 +/-    1.06  0.050 / 0.040
G21     358.5          70.4                9.8 +/-    0.46      10.4 +/-    0.46  0.040 / 0.040
G24     122.4          13.3               11.0 +/-    2.11      28.4 +/-    2.11  0.320 / 0.440
G27     319.7          17.0                7.6 +/-    2.31      18.1 +/-    2.31  0.290 / 0.300
G29     166.5          32.1               10.1 +/-    0.94      16.9 +/-    0.94  0.030 / 0.040