PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/08-16:12:20
G02     32.8           56.1               10.4 +/-    0.37      12.2 +/-    0.37  0.040 / 0.060
G05     147.1          60.3               13.1 +/-    0.58      14.9 +/-    0.58  0.040 / 0.050
G06     53.2           17.9                8.3 +/-    0.67      19.2 +/-    0.67  0.040 / 0.040
G12     202.3          68.8               10.5 +/-    0.65      11.2 +/-    0.65  0.040 / 0.040
G20     198.4          25.7               10.4 +/-    2.29      20.1 +/-    2.29  0.050 / 0.040
G25     295.3          55.1               11.8 +/-    1.53      14.0 +/-    1.53  0.040 / 0.050
G29     309.4          31.9                8.6 +/-    1.06      14.6 +/-    1.06  0.070 / 0.100