PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/13-00:42:40
G08     289.6          23.5               14.7 +/-    2.42      29.7 +/-    2.42  0.030 / 0.020
G10     9.7            63.2               15.6 +/-    0.94      17.3 +/-    0.94  0.030 / 0.020
G14     232.3          49.9               19.1 +/-    2.38      24.1 +/-    2.38  0.160 / 0.130
G18     65.6           50.4               15.8 +/-    0.66      19.8 +/-    0.66  0.180 / 0.150
G21     146.8          37.1               17.8 +/-    0.95      27.1 +/-    0.95  0.120 / 0.130
G24     55.5           25.8               15.1 +/-    2.51      29.0 +/-    2.51  0.120 / 0.120
G27     250.5          30.3               18.3 +/-    1.70      31.9 +/-    1.70  0.050 / 0.080
G32     248.2          66.7               17.5 +/-    0.60      18.9 +/-    0.60  0.050 / 0.060