PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/06-20:28:00
G07     350.2          63.2               12.7 +/-    0.46      14.0 +/-    0.46  0.030 / 0.030
G08     87.0           51.7               11.5 +/-    1.25      14.2 +/-    1.25  0.030 / 0.030
G09     186.5          68.7               13.2 +/-    0.53      14.1 +/-    0.53  0.050 / 0.050
G11     140.9          17.5               13.1 +/-    1.15      30.6 +/-    1.15  0.040 / 0.040
G23     157.7          37.7               13.3 +/-    0.76      20.1 +/-    0.76  0.090 / 0.080
G27     52.2           30.5               10.8 +/-    1.08      18.6 +/-    1.08  0.080 / 0.090
G28     240.2          30.2               13.8 +/-    1.15      24.1 +/-    1.15  0.120 / 0.180
G30     306.1          38.8               10.9 +/-    1.08      16.1 +/-    1.08  0.090 / 0.200