PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/06-21:43:10
G07     355.1          64.6               12.0 +/-    0.60      13.1 +/-    0.60  0.090 / 0.090
G08     80.1           53.5               12.3 +/-    1.49      14.9 +/-    1.49  0.050 / 0.090
G09     183.4          60.1               15.0 +/-    0.55      17.0 +/-    0.55  0.070 / 0.100
G11     139.6          20.8               14.7 +/-    1.96      31.8 +/-    1.96  0.160 / 0.110
G23     158.2          25.9               12.7 +/-    0.75      24.3 +/-    0.75  0.030 / 0.040
G27     44.4           22.8                9.0 +/-    1.65      18.5 +/-    1.65  0.040 / 0.040
G28     249.8          40.2               13.8 +/-    1.45      20.1 +/-    1.45  0.050 / 0.110
G30     315.7          47.3               11.9 +/-    0.60      15.6 +/-    0.60  0.070 / 0.120