PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-10:12:50
G02     201.8          31.7                9.4 +/-    1.43      15.8 +/-    1.43  0.050 / 0.100
G06     170.9          62.4                9.8 +/-    0.41      10.9 +/-    0.41  0.050 / 0.080
G12     305.3          11.3               -1.5 +/-   14.59      -4.2 +/-   14.59  0.050 / 0.090
G17     34.4           50.6                4.6 +/-    0.84       5.7 +/-    0.84  0.060 / 0.080
G19     357.3          66.7                4.7 +/-    0.81       5.1 +/-    0.81  0.040 / 0.030
G24     303.2          35.0                5.0 +/-    1.51       8.0 +/-    1.51  0.030 / 0.040
G28     99.4           33.0                7.0 +/-    0.92      11.6 +/-    0.92  0.110 / 0.160