PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/29-18:43:10
G03     184.7          10.0               16.6 +/-    4.15      46.2 +/-    4.15  0.060 / 0.110
G07     300.3          42.8               11.4 +/-    2.37      15.9 +/-    2.37  0.060 / 0.090
G08     138.3          35.0               15.6 +/-    0.65      24.7 +/-    0.65  0.030 / 0.040
G09     314.6          72.3               11.8 +/-    0.66      12.3 +/-    0.66  0.030 / 0.040
G16     41.6           28.7               10.9 +/-    1.37      19.7 +/-    1.37  0.140 / 0.220
G23     137.7          66.0               13.7 +/-    0.28      14.8 +/-    0.28  0.210 / 0.320
G27     85.8           36.6               11.9 +/-    1.29      18.3 +/-    1.29  0.030 / 0.020
G30     282.5          20.8               10.9 +/-    1.96      23.6 +/-    1.96  0.030 / 0.020