PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/05-13:27:40
G07     317.2          52.9                7.2 +/-    2.39       8.7 +/-    2.39  0.030 / 0.060
G08     124.7          43.1               10.2 +/-    0.69      14.1 +/-    0.69  0.060 / 0.070
G09     291.2          80.6                7.6 +/-    0.74       7.6 +/-    0.74  0.190 / 0.550
G16     42.6           22.0                6.8 +/-    2.28      14.2 +/-    2.28  0.190 / 0.670
G23     146.6          57.4                9.6 +/-    0.69      11.2 +/-    0.69  0.050 / 0.080
G27     75.8           37.4                6.5 +/-    0.40       9.9 +/-    0.40  0.060 / 0.080
G28     225.5          10.9               -4.0 +/-   19.58     -10.8 +/-   19.58  0.040 / 0.060
G30     290.5          27.6                8.4 +/-    2.90      15.5 +/-    2.90  0.040 / 0.070