PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/01-00:58:00
G08     305.1          21.1                8.5 +/-    1.09      18.2 +/-    1.09  0.080 / 0.120
G10     336.7          60.6                9.9 +/-    0.43      11.1 +/-    0.43  0.060 / 0.090
G14     220.2          35.8               14.9 +/-    1.66      23.3 +/-    1.66  0.030 / 0.070
G18     43.1           58.3               10.0 +/-    0.60      11.6 +/-    0.60  0.040 / 0.050
G21     137.0          52.9               13.8 +/-    0.73      16.8 +/-    0.73  0.030 / 0.030
G24     71.6           30.4               10.5 +/-    0.60      18.3 +/-    0.60  0.030 / 0.030
G27     268.4          36.9               12.1 +/-    1.00      18.5 +/-    1.00  0.040 / 0.060
G32     226.7          53.4               14.5 +/-    1.63      17.6 +/-    1.63  0.030 / 0.050