PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-03:57:40
G08     309.2          18.9                8.1 +/-    1.62      18.2 +/-    1.62  0.040 / 0.050
G10     339.4          61.1                6.9 +/-    0.76       7.8 +/-    0.76  0.040 / 0.060
G14     218.9          32.9                8.9 +/-    2.28      14.6 +/-    2.28  0.060 / 0.090
G20     41.7           59.4                7.5 +/-    0.95       8.6 +/-    0.95  0.060 / 0.100
G21     136.6          55.0                9.5 +/-    1.33      11.3 +/-    1.33  0.030 / 0.040
G24     71.4           29.8                5.3 +/-    0.74       9.4 +/-    0.74  0.040 / 0.030
G27     273.0          37.1                9.3 +/-    0.94      14.3 +/-    0.94  0.060 / 0.170
G32     224.7          52.2                9.7 +/-    1.85      11.9 +/-    1.85  0.070 / 0.170