PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-18:28:10
G08     279.4          22.2                9.3 +/-    1.65      19.4 +/-    1.65  0.090 / 0.180
G10     40.4           60.8                8.7 +/-    0.41       9.9 +/-    0.41  0.080 / 0.150
G14     241.6          52.7               11.3 +/-    1.45      13.8 +/-    1.45  0.060 / 0.080
G20     84.6           41.9                9.6 +/-    0.72      13.6 +/-    0.72  0.040 / 0.070
G21     152.2          27.1               10.0 +/-    1.59      18.6 +/-    1.59  0.070 / 0.210
G24     46.8           19.2                7.3 +/-    0.62      16.3 +/-    0.62  0.070 / 0.180
G27     241.3          24.4                8.0 +/-    1.74      15.9 +/-    1.74  0.030 / 0.040
G31     180.7          18.3                9.5 +/-    1.42      21.9 +/-    1.42  0.030 / 0.030
G32     292.4          76.9                9.5 +/-    0.99       9.7 +/-    0.99  0.130 / 0.200