PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/04/26-16:43:10
G07     341.2          60.9               10.9 +/-    0.80      12.3 +/-    0.80  0.120 / 0.270
G08     101.2          51.0               12.8 +/-    0.58      15.9 +/-    0.58  0.170 / 0.280
G09     199.1          76.6               10.5 +/-    0.25      10.8 +/-    0.25  0.030 / 0.040
G11     145.8          13.0               14.0 +/-    1.92      36.7 +/-    1.92  0.030 / 0.040
G16     46.0           11.3                8.1 +/-    3.80      21.9 +/-    3.80  0.080 / 0.120
G23     154.8          43.5               13.5 +/-    0.71      18.6 +/-    0.71  0.080 / 0.100
G27     58.4           33.7               10.1 +/-    1.95      16.4 +/-    1.95  0.050 / 0.090
G28     234.5          23.8               12.5 +/-    2.13      25.1 +/-    2.13  0.050 / 0.070
G30     301.5          35.6               11.0 +/-    1.53      17.3 +/-    1.53  0.370 / 0.320