PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/18-17:43:00
G08     304.7          21.1                8.1 +/-    1.62      17.3 +/-    1.62  0.060 / 0.100
G10     347.5          61.8                7.1 +/-    0.46       7.9 +/-    0.46  0.060 / 0.100
G14     220.8          31.1                9.3 +/-    2.81      15.9 +/-    2.81  0.080 / 0.180
G20     51.9           56.0                7.8 +/-    0.88       9.2 +/-    0.88  0.060 / 0.170
G21     139.4          51.5               10.1 +/-    0.93      12.5 +/-    0.93  0.050 / 0.060
G24     69.1           30.0                7.3 +/-    0.76      12.8 +/-    0.76  0.040 / 0.050
G27     267.6          36.8               10.7 +/-    1.02      16.5 +/-    1.02  0.030 / 0.040
G32     228.0          59.4               10.6 +/-    1.74      12.1 +/-    1.74  0.040 / 0.040