PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-20:42:40
G02     249.6          77.5               11.3 +/-    0.58      11.6 +/-    0.58  0.140 / 0.110
G05     170.3          18.4               15.6 +/-    1.96      35.6 +/-    1.96  0.110 / 0.120
G06     39.8           57.1               11.5 +/-    0.40      13.5 +/-    0.40  0.090 / 0.290
G12     320.8          51.7               11.5 +/-    1.19      14.3 +/-    1.19  0.090 / 0.240
G17     71.7           21.9                9.5 +/-    1.34      20.0 +/-    1.34  0.030 / 0.030
G19     59.5           36.3               10.6 +/-    0.52      16.4 +/-    0.52  0.030 / 0.030
G24     242.7          33.4               15.6 +/-    1.33      25.5 +/-    1.33  0.050 / 0.070
G25     316.6          13.7               10.4 +/-    2.12      26.6 +/-    2.12  0.040 / 0.060