PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/15-15:27:30
G10     251.6          29.5                8.0 +/-    1.60      14.2 +/-    1.60  0.130 / 0.420
G13     51.9           27.9                6.1 +/-    2.27      11.2 +/-    2.27  0.170 / 0.460
G15     79.8           55.7                8.2 +/-    0.84       9.7 +/-    0.84  0.050 / 0.050
G16     293.8          16.0                5.7 +/-    1.46      13.9 +/-    1.46  0.050 / 0.050
G20     274.3          53.9                9.7 +/-    2.38      11.7 +/-    2.38  0.040 / 0.050
G21     336.4          60.9                6.5 +/-    0.72       7.4 +/-    0.72  0.040 / 0.040
G26     267.3          15.0                4.3 +/-    2.53      10.8 +/-    2.53  0.090 / 0.110
G29     164.2          50.0               10.7 +/-    0.42      13.5 +/-    0.42  0.080 / 0.100