PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/21-17:27:30
G10     295.6          51.4                8.6 +/-    0.82      10.7 +/-    0.82  0.070 / 0.110
G15     46.7           31.5                7.4 +/-    0.80      12.6 +/-    0.80  0.060 / 0.120
G20     349.0          65.4                8.5 +/-    0.62       9.2 +/-    0.62  0.090 / 0.100
G21     95.7           73.1               10.8 +/-    1.93      11.3 +/-    1.93  0.100 / 0.160
G24     94.6           25.5               10.7 +/-    0.86      20.6 +/-    0.86  0.040 / 0.040
G27     303.9          32.2                8.8 +/-    0.70      14.7 +/-    0.70  0.040 / 0.050
G32     209.9          30.3               10.5 +/-    1.06      18.4 +/-    1.06  0.060 / 0.080