PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/31-17:42:30
G10     289.0          49.8               10.4 +/-    3.00      13.2 +/-    3.00  0.040 / 0.040
G15     47.3           32.4                7.9 +/-    1.12      13.2 +/-    1.12  0.040 / 0.040
G20     341.2          65.4               10.9 +/-    0.69      11.9 +/-    0.69  0.170 / 0.340
G21     67.2           76.9               10.7 +/-    0.53      10.9 +/-    0.53  0.160 / 0.340
G24     106.9          23.6               12.2 +/-    1.11      24.7 +/-    1.11  0.080 / 0.090
G27     307.7          30.8                9.0 +/-    1.40      15.5 +/-    1.40  0.070 / 0.090
G29     168.3          15.1               12.9 +/-    1.49      32.0 +/-    1.49  0.100 / 0.060
G32     207.2          26.2               12.9 +/-    2.67      24.6 +/-    2.67  0.110 / 0.100