PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/03/16-23:12:50
G01     58.2           29.7               10.7 +/-    1.13      18.8 +/-    1.13  0.120 / 0.120
G07     142.3          16.3               11.0 +/-    1.05      26.5 +/-    1.05  0.150 / 0.190
G11     46.8           21.4                9.8 +/-    2.92      20.9 +/-    2.92  0.040 / 0.050
G13     259.8          35.2               13.5 +/-    1.85      21.3 +/-    1.85  0.040 / 0.050
G15     291.8          16.5               10.0 +/-    1.52      23.9 +/-    1.52  0.120 / 0.410
G17     270.6          78.9               12.1 +/-    0.93      12.3 +/-    0.93  0.120 / 0.350
G18     39.5           9.7                 9.2 +/-    1.56      25.8 +/-    1.56  0.100 / 0.060
G19     233.6          51.8               12.5 +/-    2.55      15.4 +/-    2.55  0.090 / 0.080
G28     32.0           58.1               11.7 +/-    0.60      13.6 +/-    0.60  0.040 / 0.050
G30     144.7          50.3               12.7 +/-    0.45      15.9 +/-    0.45  0.040 / 0.040