PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/28-00:58:10
G02     46.6           43.6               11.3 +/-    1.28      15.5 +/-    1.28  0.030 / 0.040
G05     95.1           68.9               11.9 +/-    0.69      12.7 +/-    0.69  0.050 / 0.040
G12     187.9          50.0               15.6 +/-    0.55      19.7 +/-    0.55  0.040 / 0.030
G25     269.0          58.2               13.1 +/-    1.42      15.1 +/-    1.42  0.030 / 0.030
G29     317.2          39.0               10.7 +/-    1.11      15.8 +/-    1.11  0.050 / 0.040