PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/08-21:12:30
G02     216.1          60.0               12.8 +/-    0.73      14.6 +/-    0.73  0.070 / 0.110
G06     56.4           73.3               10.9 +/-    0.72      11.4 +/-    0.72  0.060 / 0.080
G12     319.0          37.5               10.3 +/-    0.97      15.6 +/-    0.97  0.050 / 0.080
G17     56.2           34.0                8.5 +/-    0.53      13.8 +/-    0.53  0.040 / 0.080
G19     37.1           50.7                8.8 +/-    0.32      11.0 +/-    0.32  0.050 / 0.090
G24     264.6          41.7               12.2 +/-    1.69      17.3 +/-    1.69  0.040 / 0.070
G28     122.7          13.5               12.0 +/-    0.91      31.0 +/-    0.91  0.120 / 0.390