PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/03-20:57:50
G10     267.3          37.7               17.9 +/-    1.36      27.1 +/-    1.36  0.170 / 0.330
G13     42.3           19.4               16.2 +/-    1.17      36.1 +/-    1.17  0.170 / 0.320
G15     58.6           48.3               18.3 +/-    0.60      23.6 +/-    0.60  0.040 / 0.040
G16     282.8          11.0               17.0 +/-    3.30      46.5 +/-    3.30  0.040 / 0.040
G18     302.7          64.8               16.2 +/-    0.60      17.7 +/-    0.60  0.140 / 0.610
G20     54.8           34.5               15.1 +/-    1.54      24.2 +/-    1.54  0.180 / 0.470
G21     10.2           73.0               18.5 +/-    0.97      19.2 +/-    0.97  0.130 / 0.220
G24     121.1          14.2               23.0 +/-    2.06      58.4 +/-    2.06  0.100 / 0.230
G27     317.6          20.6               14.6 +/-    3.35      31.6 +/-    3.35  0.110 / 0.270
G29     166.0          26.1               20.0 +/-    1.27      38.1 +/-    1.27  0.120 / 0.270