PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/09/30-18:57:50
G10     260.9          35.9               17.0 +/-    0.84      26.5 +/-    0.84  0.050 / 0.050
G13     44.8           21.7               12.0 +/-    1.78      25.4 +/-    1.78  0.050 / 0.040
G15     66.4           52.7               12.8 +/-    0.69      15.6 +/-    0.69  0.090 / 0.270
G16     284.4          14.4               12.6 +/-    1.66      31.8 +/-    1.66  0.120 / 0.310
G20     288.6          58.3               14.5 +/-    1.54      16.7 +/-    1.54  0.160 / 0.280
G21     349.1          67.1               14.4 +/-    0.44      15.5 +/-    0.44  0.110 / 0.300
G24     127.2          10.4                4.7 +/-   47.95      13.1 +/-   47.95  0.040 / 0.040
G26     258.3          10.8               16.3 +/-    1.13      44.7 +/-    1.13  0.030 / 0.040
G27     321.2          13.6               10.9 +/-    2.28      28.2 +/-    2.28  0.110 / 0.250
G29     166.4          38.8               15.3 +/-    1.45      22.6 +/-    1.45  0.100 / 0.270