PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/01-00:42:10
G02     46.7           43.6               12.8 +/-    0.91      17.6 +/-    0.91  0.060 / 0.070
G05     94.7           68.9               14.7 +/-    0.73      15.6 +/-    0.73  0.040 / 0.060
G12     187.7          49.7               15.7 +/-    1.42      19.9 +/-    1.42  0.020 / 0.040
G25     268.6          58.2               14.2 +/-    0.41      16.4 +/-    0.41  0.030 / 0.040
G29     317.2          39.1               13.4 +/-    1.04      19.7 +/-    1.04  0.040 / 0.050