PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/28-18:28:10
G10     245.8          24.3               20.7 +/-    1.06      41.1 +/-    1.06  0.060 / 0.060
G13     58.5           31.5               13.9 +/-    1.20      23.5 +/-    1.20  0.050 / 0.060
G15     97.9           57.8               18.3 +/-    0.75      21.2 +/-    0.75  0.210 / 0.450
G16     300.9          15.8                9.5 +/-    2.22      23.2 +/-    2.22  0.150 / 0.530
G20     263.7          48.2               18.5 +/-    3.60      23.8 +/-    3.60  0.050 / 0.120
G21     326.9          55.4               16.7 +/-    0.68      19.8 +/-    0.68  0.100 / 0.150
G26     273.6          17.5               13.7 +/-    2.14      32.0 +/-    2.14  0.030 / 0.040
G29     161.7          57.6               18.9 +/-    0.42      21.9 +/-    0.42  0.040 / 0.030