PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-22:42:40
G05     47.0           24.1               10.4 +/-    1.49      20.8 +/-    1.49  0.120 / 0.340
G13     82.6           37.4               13.6 +/-    1.07      20.7 +/-    1.07  0.110 / 0.390
G15     132.0          49.1               15.8 +/-    0.58      20.1 +/-    0.58  0.040 / 0.080
G18     241.8          38.4               15.8 +/-    1.64      23.6 +/-    1.64  0.040 / 0.070
G20     25.9           69.1               13.0 +/-    0.41      13.8 +/-    0.41  0.130 / 0.300
G21     309.4          44.9               13.3 +/-    1.45      17.9 +/-    1.45  0.130 / 0.270
G25     197.8          11.3               19.3 +/-    1.50      52.2 +/-    1.50  0.030 / 0.030
G26     293.6          19.8               12.6 +/-    1.65      27.9 +/-    1.65  0.030 / 0.020
G29     150.9          73.7               15.6 +/-    0.46      16.1 +/-    0.46  0.140 / 0.080