PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/15-16:57:50
G10     300.0          53.5                8.3 +/-    0.84      10.0 +/-    0.84  0.060 / 0.080
G15     45.7           25.2                6.1 +/-    0.73      11.8 +/-    0.73  0.080 / 0.090
G20     0.2            65.0                7.1 +/-    1.56       7.7 +/-    1.56  0.080 / 0.160
G21     97.2           73.7                9.8 +/-    1.26      10.2 +/-    1.26  0.070 / 0.130
G24     99.2           26.9                9.2 +/-    0.56      17.2 +/-    0.56  0.040 / 0.050
G27     300.4          34.7                8.2 +/-    1.23      13.0 +/-    1.23  0.040 / 0.040
G32     209.8          33.6                9.6 +/-    1.15      15.6 +/-    1.15  0.040 / 0.040