PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/16-16:57:50
G10     302.9          54.3                7.3 +/-    1.14       8.7 +/-    1.14  0.090 / 0.070
G15     45.5           23.5                5.9 +/-    2.83      11.9 +/-    2.83  0.120 / 0.090
G20     4.6            64.7                7.1 +/-    0.46       7.7 +/-    0.46  0.040 / 0.040
G21     102.7          72.5                8.9 +/-    1.15       9.3 +/-    1.15  0.040 / 0.040
G24     97.2           27.5                7.2 +/-    1.11      13.3 +/-    1.11  0.070 / 0.180
G27     298.4          35.4                9.3 +/-    1.70      14.6 +/-    1.70  0.120 / 0.180
G32     210.6          35.5               10.0 +/-    0.91      15.8 +/-    0.91  0.080 / 0.030