PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/23-19:43:10
G10     269.2          40.8               13.1 +/-    1.17      18.8 +/-    1.17  0.050 / 0.050
G13     40.8           15.9                9.9 +/-    2.33      24.0 +/-    2.33  0.040 / 0.050
G15     57.4           47.6               12.4 +/-    0.96      16.1 +/-    0.96  0.190 / 0.280
G16     277.0          12.1               10.5 +/-    2.50      27.9 +/-    2.50  0.160 / 0.350
G20     303.1          61.6               12.4 +/-    0.89      13.9 +/-    0.89  0.030 / 0.040
G21     5.1            72.2               14.3 +/-    0.70      14.9 +/-    0.70  0.040 / 0.050
G24     120.9          15.0               14.5 +/-    1.78      36.2 +/-    1.78  0.110 / 0.000
G27     318.2          19.8                9.8 +/-    1.40      21.7 +/-    1.40  0.170 / 0.220
G29     167.5          30.4               13.1 +/-    0.98      22.8 +/-    0.98  0.140 / 0.260
G32     204.1          10.8              -15.0 +/-   24.44     -41.2 +/-   24.44  0.170 / 0.470