PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/09-15:27:50
G01     51.3           26.0               10.9 +/-    1.53      20.8 +/-    1.53  0.050 / 0.060
G06     178.1          23.8               12.1 +/-    1.45      24.4 +/-    1.45  0.050 / 0.070
G07     145.4          10.9                9.7 +/-    2.78      26.5 +/-    2.78  0.130 / 0.260
G11     44.4           13.7                7.5 +/-    1.60      19.3 +/-    1.60  0.190 / 0.260
G13     254.3          31.1               12.5 +/-    1.24      21.4 +/-    1.24  0.030 / 0.030
G15     288.1          15.4                8.7 +/-    2.31      21.4 +/-    2.31  0.040 / 0.030
G17     321.3          79.2               12.1 +/-    0.41      12.3 +/-    0.41  0.080 / 0.130
G19     245.9          61.0               14.1 +/-    0.62      15.9 +/-    0.62  0.070 / 0.110
G28     50.5           53.3               10.3 +/-    0.57      12.4 +/-    0.57  0.080 / 0.150
G30     149.1          45.1               10.1 +/-    1.21      13.6 +/-    1.21  0.080 / 0.150