PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/04-03:43:10
G08     313.8          16.5                9.5 +/-    2.57      22.7 +/-    2.57  0.220 / 0.310
G10     323.4          58.5                8.7 +/-    0.35      10.0 +/-    0.35  0.180 / 0.300
G14     216.1          23.7               11.9 +/-    1.92      23.9 +/-    1.92  0.040 / 0.050
G15     46.2           16.0                5.5 +/-    2.79      13.4 +/-    2.79  0.050 / 0.060
G20     11.6           64.6               12.1 +/-    1.13      13.2 +/-    1.13  0.050 / 0.030
G21     129.0          62.3                9.8 +/-    0.52      10.9 +/-    0.52  0.040 / 0.040
G24     78.3           29.7                7.5 +/-    0.87      13.2 +/-    0.87  0.210 / 0.250
G27     280.9          37.7                9.1 +/-    1.11      13.8 +/-    1.11  0.120 / 0.260
G32     219.4          49.7               11.2 +/-    1.88      14.1 +/-    1.88  0.140 / 0.220