PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/23-01:43:10
G10     259.2          34.5               10.1 +/-    1.36      16.2 +/-    1.36  0.370 / 0.340
G13     45.8           23.0                7.4 +/-    2.23      15.2 +/-    2.23  0.420 / 0.410
G15     68.1           53.2                9.0 +/-    0.54      11.0 +/-    0.54  0.150 / 0.100
G16     288.0          14.2                6.3 +/-    1.26      15.9 +/-    1.26  0.150 / 0.090
G20     283.9          56.2                9.8 +/-    2.45      11.5 +/-    2.45  0.040 / 0.040
G21     347.4          66.4                9.4 +/-    0.68      10.2 +/-    0.68  0.040 / 0.040
G26     260.6          11.5                9.3 +/-    4.73      25.0 +/-    4.73  0.110 / 0.250
G27     321.8          11.7               -4.4 +/-   30.44     -11.8 +/-   30.44  0.100 / 0.240
G29     165.1          38.1               10.0 +/-    0.74      15.0 +/-    0.74  0.130 / 0.200