PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-19:28:00
G02     61.0           32.7               10.1 +/-    1.15      16.8 +/-    1.15  0.030 / 0.050
G05     54.2           58.7               10.1 +/-    0.66      11.6 +/-    0.66  0.030 / 0.050
G12     180.6          25.1               15.0 +/-    2.55      29.2 +/-    2.55  0.150 / 0.240
G13     124.9          17.6               13.3 +/-    2.18      31.0 +/-    2.18  0.120 / 0.290
G15     164.8          13.3               16.7 +/-    2.52      43.4 +/-    2.52  0.050 / 0.160
G21     273.8          18.5               10.5 +/-    1.18      24.0 +/-    1.18  0.070 / 0.140
G25     230.0          49.1               13.7 +/-    1.21      17.5 +/-    1.21  0.150 / 0.420
G29     329.5          56.6                9.7 +/-    0.93      11.4 +/-    0.93  0.090 / 0.410