PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/11/22-16:58:10
G10     280.4          45.5                8.5 +/-    1.35      11.4 +/-    1.35  0.090 / 0.140
G15     51.0           41.4                7.1 +/-    0.64      10.1 +/-    0.64  0.070 / 0.120
G20     322.0          64.2                7.4 +/-    0.61       8.2 +/-    0.61  0.040 / 0.040
G21     51.8           76.4                9.3 +/-    0.32       9.5 +/-    0.32  0.040 / 0.060
G24     106.1          20.7                9.6 +/-    0.62      20.7 +/-    0.62  0.080 / 0.180
G27     313.3          25.5                7.0 +/-    1.78      13.6 +/-    1.78  0.060 / 0.250
G29     167.9          18.8               10.7 +/-    1.06      24.1 +/-    1.06  0.090 / 0.180
G32     206.4          19.4               11.4 +/-    1.75      25.6 +/-    1.75  0.100 / 0.140