PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/27-19:12:50
G01     121.5          16.1               17.7 +/-    2.72      42.8 +/-    2.72  0.050 / 0.060
G07     72.0           68.1               14.2 +/-    1.07      15.2 +/-    1.07  0.040 / 0.060
G08     47.5           37.1               11.4 +/-    0.59      17.4 +/-    0.59  0.050 / 0.090
G09     177.8          29.3               17.0 +/-    1.70      30.1 +/-    1.70  0.050 / 0.110
G11     112.2          38.7               17.5 +/-    0.71      26.0 +/-    0.71  0.030 / 0.050
G13     319.0          16.9               11.7 +/-    2.43      27.9 +/-    2.43  0.030 / 0.030
G17     202.4          18.0               20.3 +/-    2.48      46.9 +/-    2.48  0.100 / 0.250
G18     97.7           19.7               15.0 +/-    0.52      33.3 +/-    0.52  0.140 / 0.250
G28     288.3          56.4               16.1 +/-    0.71      18.9 +/-    0.71  0.030 / 0.050
G30     345.2          67.4               12.2 +/-    0.90      13.1 +/-    0.90  0.030 / 0.040