PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/22-23:43:00
G08     298.7          22.7               11.1 +/-    0.90      22.9 +/-    0.90  0.050 / 0.100
G10     350.8          62.2                8.7 +/-    0.48       9.7 +/-    0.48  0.040 / 0.070
G14     224.8          41.9               16.4 +/-    1.22      23.1 +/-    1.22  0.060 / 0.080
G18     54.2           54.7               11.0 +/-    0.72      13.2 +/-    0.72  0.080 / 0.080
G21     142.0          45.4               13.9 +/-    1.14      18.7 +/-    1.14  0.030 / 0.040
G24     64.0           29.0               10.5 +/-    0.58      18.8 +/-    0.58  0.040 / 0.050
G27     260.1          34.5               13.7 +/-    1.70      22.0 +/-    1.70  0.100 / 0.120
G32     234.1          58.8               15.6 +/-    1.31      18.0 +/-    1.31  0.090 / 0.100