PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-15:42:50
G07     340.4          60.6               15.6 +/-    1.06      17.7 +/-    1.06  0.050 / 0.050
G08     92.5           53.3               16.5 +/-    0.46      20.1 +/-    0.46  0.050 / 0.060
G09     185.3          67.7               15.9 +/-    0.55      17.0 +/-    0.55  0.040 / 0.050
G11     142.9          16.4               20.3 +/-    2.34      48.8 +/-    2.34  0.040 / 0.040
G23     155.9          32.5               17.4 +/-    1.52      28.9 +/-    1.52  0.060 / 0.090
G27     50.2           28.6               13.2 +/-    0.81      23.8 +/-    0.81  0.080 / 0.080
G28     241.9          33.8               18.9 +/-    1.00      30.6 +/-    1.00  0.060 / 0.140
G30     306.5          39.0               14.1 +/-    0.76      20.8 +/-    0.76  0.060 / 0.120