PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/21-23:13:00
G08     320.1          11.2               -3.9 +/-   29.24     -10.6 +/-   29.24  0.040 / 0.030
G10     316.6          57.5                7.2 +/-    1.14       8.3 +/-    1.14  0.030 / 0.040
G14     213.3          19.9               10.1 +/-    5.97      22.2 +/-    5.97  0.360 / 0.330
G15     45.7           19.1                6.5 +/-    2.60      14.7 +/-    2.60  0.120 / 0.360
G20     18.2           63.4                8.5 +/-    0.84       9.3 +/-    0.84  0.180 / 0.290
G21     120.9          67.1                9.8 +/-    0.64      10.6 +/-    0.64  0.060 / 0.240
G24     86.8           29.8                8.7 +/-    1.02      15.4 +/-    1.02  0.060 / 0.060
G27     288.5          37.5                6.7 +/-    0.55      10.2 +/-    0.55  0.060 / 0.070
G32     215.4          42.3               11.6 +/-    0.62      16.3 +/-    0.62  0.260 / 0.350