PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/10/25-17:28:00
G10     266.8          39.6               17.4 +/-    1.08      25.5 +/-    1.08  0.100 / 0.170
G13     41.7           17.6               10.4 +/-    1.06      24.2 +/-    1.06  0.100 / 0.160
G15     58.5           47.8               12.7 +/-    0.31      16.4 +/-    0.31  0.140 / 0.360
G16     278.9          12.9               12.0 +/-    2.72      31.3 +/-    2.72  0.130 / 0.390
G20     300.2          61.3               14.3 +/-    0.60      16.1 +/-    0.60  0.120 / 0.340
G21     1.1            71.0               14.8 +/-    0.76      15.6 +/-    0.76  0.140 / 0.340
G24     122.9          13.6               19.0 +/-    1.25      48.8 +/-    1.25  0.040 / 0.050
G27     319.2          18.2                9.4 +/-    1.60      21.7 +/-    1.60  0.050 / 0.040
G29     167.3          33.1               20.8 +/-    2.30      34.2 +/-    2.30  0.050 / 0.100