PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/27-17:13:00
G10     263.5          37.6               12.5 +/-    1.29      18.8 +/-    1.29  0.110 / 0.230
G13     43.3           19.9               10.9 +/-    1.71      24.0 +/-    1.71  0.250 / 0.210
G15     61.9           49.9               11.6 +/-    0.96      14.7 +/-    0.96  0.160 / 0.700
G16     281.8          13.8                8.6 +/-    5.52      22.0 +/-    5.52  0.170 / 0.680
G20     294.3          60.0               12.1 +/-    0.83      13.7 +/-    0.83  0.280 / 0.350
G21     354.7          69.0               12.3 +/-    1.15      13.1 +/-    1.15  0.230 / 0.400
G24     125.3          11.8               12.5 +/-    3.85      33.6 +/-    3.85  0.040 / 0.050
G27     320.3          15.7                9.5 +/-    1.41      23.1 +/-    1.41  0.050 / 0.050
G29     166.9          36.4               13.6 +/-    1.16      21.0 +/-    1.16  0.120 / 0.180