PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/11-21:12:30
G02     329.2          80.0                8.6 +/-    0.39       8.7 +/-    0.39  0.190 / 0.200
G05     164.8          31.1               13.3 +/-    1.35      22.8 +/-    1.35  0.120 / 0.200
G06     40.3           43.7                9.0 +/-    1.02      12.4 +/-    1.02  0.030 / 0.030
G12     316.0          65.7                9.1 +/-    0.76       9.9 +/-    0.76  0.030 / 0.030
G17     82.8           14.0                9.9 +/-    2.29      25.4 +/-    2.29  0.160 / 0.210
G19     72.4           28.0                9.9 +/-    1.26      18.1 +/-    1.26  0.230 / 0.340
G24     230.5          24.6               13.3 +/-    1.99      26.3 +/-    1.99  0.030 / 0.040
G25     317.3          25.7               10.2 +/-    1.98      19.6 +/-    1.98  0.040 / 0.040