PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/06/08-22:42:40
G02     35.3           53.1               12.9 +/-    0.34      15.6 +/-    0.34  0.060 / 0.060
G05     131.8          64.4               15.9 +/-    1.04      17.5 +/-    1.04  0.040 / 0.060
G06     54.6           14.6               10.8 +/-    1.34      27.0 +/-    1.34  0.070 / 0.060
G12     200.0          66.9               12.9 +/-    0.61      13.8 +/-    0.61  0.120 / 0.080
G25     293.2          54.8               12.3 +/-    0.76      14.7 +/-    0.76  0.030 / 0.040
G29     310.1          31.7               12.0 +/-    0.97      20.4 +/-    0.97  0.050 / 0.050