PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/29-15:12:30
G07     320.7          52.9               15.0 +/-    1.55      18.3 +/-    1.55  0.030 / 0.050
G08     115.5          48.6               17.9 +/-    0.53      23.0 +/-    0.53  0.030 / 0.050
G09     216.9          81.4               14.2 +/-    0.80      14.3 +/-    0.80  0.050 / 0.060
G16     44.6           12.3               11.5 +/-    0.96      30.5 +/-    0.96  0.030 / 0.050
G23     150.9          46.9               15.2 +/-    1.22      20.0 +/-    1.22  0.080 / 0.150
G27     63.9           35.2               14.1 +/-    0.41      22.2 +/-    0.41  0.080 / 0.110
G28     231.2          22.8               16.7 +/-    1.76      34.3 +/-    1.76  0.120 / 0.260
G30     295.5          29.9               13.7 +/-    1.53      24.1 +/-    1.53  0.120 / 0.310