PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/26-17:12:50
G01     122.1          15.7               12.8 +/-    1.90      31.4 +/-    1.90  0.050 / 0.060
G07     70.5           68.3               13.0 +/-    0.34      13.8 +/-    0.34  0.060 / 0.070
G08     47.2           36.2               11.0 +/-    0.90      17.0 +/-    0.90  0.030 / 0.030
G09     177.4          29.4               14.0 +/-    1.50      24.8 +/-    1.50  0.030 / 0.030
G11     112.0          38.4               14.1 +/-    0.78      21.1 +/-    0.78  0.030 / 0.030
G13     319.2          16.6               11.5 +/-    3.79      27.4 +/-    3.79  0.030 / 0.030
G17     201.8          18.8               13.8 +/-    2.47      31.2 +/-    2.47  0.100 / 0.210
G18     98.1           19.5               11.7 +/-    1.50      26.1 +/-    1.50  0.120 / 0.200
G28     286.9          56.0               13.2 +/-    2.42      15.5 +/-    2.42  0.150 / 0.250
G30     342.3          66.2               12.4 +/-    0.75      13.4 +/-    0.75  0.160 / 0.290