PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/20-03:58:00
G08     309.2          18.9                6.3 +/-    1.42      14.2 +/-    1.42  0.110 / 0.090
G10     339.4          61.1                6.7 +/-    0.78       7.5 +/-    0.78  0.110 / 0.100
G14     218.9          32.9                8.3 +/-    1.32      13.7 +/-    1.32  0.030 / 0.030
G20     41.7           59.4                7.6 +/-    0.92       8.7 +/-    0.92  0.030 / 0.030
G21     136.6          55.0                8.8 +/-    0.46      10.5 +/-    0.46  0.050 / 0.040
G24     71.4           29.8                5.1 +/-    1.20       8.9 +/-    1.20  0.060 / 0.050
G27     273.0          37.1                8.3 +/-    2.44      12.6 +/-    2.44  0.080 / 0.160
G32     224.7          52.2                9.4 +/-    2.38      11.5 +/-    2.38  0.100 / 0.170