PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/16-01:42:30
G01     319.2          16.9               10.4 +/-    1.45      24.6 +/-    1.45  0.120 / 0.200
G08     257.0          13.8               13.7 +/-    1.00      35.1 +/-    1.00  0.110 / 0.200
G10     76.7           54.8               10.6 +/-    0.60      12.6 +/-    0.60  0.020 / 0.030
G11     303.0          23.9               11.5 +/-    1.84      23.0 +/-    1.84  0.030 / 0.030
G14     297.3          71.2               11.8 +/-    0.73      12.4 +/-    0.73  0.060 / 0.060
G18     100.4          30.3               11.7 +/-    0.65      20.4 +/-    0.65  0.060 / 0.050
G31     178.1          38.8               14.4 +/-    1.27      21.4 +/-    1.27  0.130 / 0.220
G32     357.2          69.7               11.6 +/-    0.46      12.3 +/-    0.46  0.160 / 0.200