PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/09-21:12:10
G02     201.9          30.6               16.6 +/-    0.91      28.6 +/-    0.91  0.080 / 0.090
G06     167.8          62.9               16.2 +/-    0.31      17.9 +/-    0.31  0.090 / 0.090
G17     31.9           52.3               13.8 +/-    1.18      17.0 +/-    1.18  0.050 / 0.080
G19     352.4          67.5               13.8 +/-    0.82      14.8 +/-    0.82  0.050 / 0.080
G24     301.4          36.3               12.6 +/-    1.45      19.5 +/-    1.45  0.040 / 0.030
G28     95.4           37.9               14.8 +/-    0.93      22.3 +/-    0.93  0.040 / 0.030