PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/08/31-08:12:30
G07     340.6          60.9                5.8 +/-    0.95       6.5 +/-    0.95  0.050 / 0.040
G08     101.2          53.0                6.5 +/-    0.43       7.9 +/-    0.43  0.040 / 0.050
G09     187.0          71.2                5.4 +/-    0.74       5.6 +/-    0.74  0.080 / 0.090
G11     145.1          15.2                6.5 +/-    3.14      16.0 +/-    3.14  0.080 / 0.080
G23     155.4          37.2                5.5 +/-    0.91       8.4 +/-    0.91  0.120 / 0.260
G27     53.5           30.8                4.5 +/-    0.52       7.8 +/-    0.52  0.070 / 0.220
G28     236.9          24.8                7.5 +/-    2.04      14.7 +/-    2.04  0.180 / 0.350
G30     303.2          36.0                5.6 +/-    0.84       8.7 +/-    0.84  0.140 / 0.320