PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/04-17:58:00
G08     292.7          23.8                7.6 +/-    1.75      15.2 +/-    1.75  0.050 / 0.040
G10     5.8            62.9                7.7 +/-    0.50       8.6 +/-    0.50  0.060 / 0.040
G14     228.5          45.8               10.2 +/-    1.10      13.6 +/-    1.10  0.100 / 0.130
G20     63.6           52.9                9.3 +/-    0.86      11.3 +/-    0.86  0.110 / 0.130
G21     145.4          39.0               12.3 +/-    0.94      18.3 +/-    0.94  0.050 / 0.080
G24     53.7           23.0                8.3 +/-    0.80      17.0 +/-    0.80  0.060 / 0.090
G27     258.5          32.4                8.9 +/-    1.64      14.9 +/-    1.64  0.080 / 0.110
G32     242.7          66.1                9.3 +/-    0.60      10.0 +/-    0.60  0.060 / 0.110