PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/08-22:57:50
G02     41.1           48.0               12.1 +/-    1.06      15.7 +/-    1.06  0.050 / 0.050
G05     114.6          68.1               14.5 +/-    0.50      15.5 +/-    0.50  0.050 / 0.050
G06     58.4           9.8                11.2 +/-    1.69      31.4 +/-    1.69  0.070 / 0.060
G12     193.9          59.6               14.5 +/-    0.58      16.6 +/-    0.58  0.070 / 0.070
G25     281.0          57.6                3.8 +/-    2.18       4.4 +/-    2.18  0.030 / 0.040
G29     314.8          36.9               11.9 +/-    1.06      18.3 +/-    1.06  0.040 / 0.040