PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/03-20:42:40
G07     352.4          63.7               11.7 +/-    0.63      12.9 +/-    0.63  0.030 / 0.040
G08     84.7           51.6               11.8 +/-    0.45      14.6 +/-    0.45  0.040 / 0.040
G09     185.4          67.2               12.9 +/-    0.48      13.9 +/-    0.48  0.090 / 0.100
G11     140.0          18.3               13.6 +/-    1.74      31.3 +/-    1.74  0.090 / 0.080
G23     158.0          36.4               13.6 +/-    0.54      21.0 +/-    0.54  0.090 / 0.140
G27     51.1           29.8               10.0 +/-    0.90      17.6 +/-    0.90  0.110 / 0.170
G28     241.2          31.2               12.6 +/-    1.27      21.5 +/-    1.27  0.030 / 0.030
G30     307.1          39.6               10.8 +/-    1.13      15.9 +/-    1.13  0.030 / 0.030