PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/27-19:57:50
G07     338.3          59.8               13.0 +/-    0.35      14.8 +/-    0.35  0.040 / 0.040
G08     98.9           53.9               13.9 +/-    0.64      16.7 +/-    0.64  0.030 / 0.040
G09     189.1          70.1               15.9 +/-    0.41      16.8 +/-    0.41  0.030 / 0.030
G11     145.2          15.0               19.6 +/-    1.73      48.7 +/-    1.73  0.020 / 0.030
G23     155.7          34.3               16.9 +/-    0.76      27.2 +/-    0.76  0.080 / 0.140
G27     51.0           29.0               12.5 +/-    1.62      22.3 +/-    1.62  0.060 / 0.150
G28     240.9          33.2               15.0 +/-    1.44      24.6 +/-    1.44  0.070 / 0.080
G30     307.0          40.0               12.5 +/-    0.96      18.2 +/-    0.96  0.090 / 0.090