PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/20-02:13:10
G08     320.8          10.8              -15.6 +/-   21.30     -42.7 +/-   21.30  0.080 / 0.110
G10     304.7          54.1               11.3 +/-    0.74      13.5 +/-    0.74  0.070 / 0.070
G14     211.9          14.1               16.5 +/-    2.61      41.9 +/-    2.61  0.030 / 0.040
G15     45.8           26.1                8.3 +/-    2.10      15.8 +/-    2.10  0.030 / 0.040
G20     324.1          61.3               18.5 +/-    0.52      20.7 +/-    0.52  0.080 / 0.120
G21     108.7          71.8               11.2 +/-    0.79      11.7 +/-    0.79  0.080 / 0.140
G24     90.9           27.9               10.5 +/-    1.26      19.2 +/-    1.26  0.110 / 0.540
G27     295.1          36.0               13.2 +/-    2.61      20.6 +/-    2.61  0.160 / 0.370
G32     212.5          38.6               15.4 +/-    1.31      22.9 +/-    1.31  0.140 / 0.360