PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/06-22:57:50
G10     272.0          40.3               16.4 +/-    1.66      23.7 +/-    1.66  0.040 / 0.040
G13     40.6           16.3               14.6 +/-    3.00      35.2 +/-    3.00  0.030 / 0.040
G15     55.2           45.8               15.2 +/-    0.60      20.2 +/-    0.60  0.090 / 0.180
G18     310.9          65.6               13.4 +/-    1.08      14.5 +/-    1.08  0.130 / 0.200
G20     58.2           30.6               14.2 +/-    1.18      24.6 +/-    1.18  0.180 / 0.200
G21     19.9           74.9               16.2 +/-    0.90      16.7 +/-    0.90  0.110 / 0.250
G24     117.5          16.7               16.4 +/-    1.70      39.3 +/-    1.70  0.100 / 0.140
G27     315.2          23.9               13.3 +/-    1.35      26.7 +/-    1.35  0.090 / 0.160
G29     167.0          22.9               18.0 +/-    1.80      37.0 +/-    1.80  0.190 / 0.510
G32     205.9          11.6               -3.3 +/-   55.54      -9.0 +/-   55.54  0.140 / 0.500