PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/06-00:28:10
G02     201.3          31.0               14.6 +/-    1.40      25.0 +/-    1.40  0.040 / 0.040
G06     166.1          63.5               13.9 +/-    0.32      15.3 +/-    0.32  0.030 / 0.030
G12     304.6          11.0               -4.7 +/-   17.77     -12.8 +/-   17.77  0.210 / 0.260
G17     26.4           56.3               10.8 +/-    0.74      12.8 +/-    0.74  0.120 / 0.100
G19     347.8          68.1               10.6 +/-    0.47      11.3 +/-    0.47  0.070 / 0.110
G24     303.3          35.1               10.9 +/-    1.90      17.2 +/-    1.90  0.050 / 0.050
G28     97.8           34.0               12.6 +/-    0.91      20.4 +/-    0.91  0.040 / 0.040