PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/15-16:57:30
G10     300.0          53.5                7.2 +/-    1.70       8.7 +/-    1.70  0.070 / 0.080
G15     45.7           25.2                6.7 +/-    1.64      13.0 +/-    1.64  0.080 / 0.080
G20     0.2            65.0                7.3 +/-    0.40       7.9 +/-    0.40  0.100 / 0.130
G21     97.2           73.7                8.9 +/-    0.47       9.2 +/-    0.47  0.090 / 0.130
G24     99.2           26.9                8.0 +/-    0.76      15.0 +/-    0.76  0.040 / 0.040
G27     300.4          34.7                6.4 +/-    1.05      10.3 +/-    1.05  0.040 / 0.050
G32     209.8          33.6               10.9 +/-    1.21      17.7 +/-    1.21  0.050 / 0.060