PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/29-03:27:50
G02     58.0           33.5                5.4 +/-    2.46       8.8 +/-    2.46  0.080 / 0.080
G05     61.2           62.0                6.4 +/-    0.49       7.2 +/-    0.49  0.060 / 0.080
G12     185.6          35.9               10.4 +/-    1.44      16.3 +/-    1.44  0.030 / 0.040
G13     130.8          13.2                8.3 +/-    1.78      21.6 +/-    1.78  0.030 / 0.040
G15     165.0          10.1               -7.9 +/-    8.22     -22.0 +/-    8.22  0.220 / 0.210
G20     216.0          21.9               11.5 +/-    2.42      24.3 +/-    2.42  0.160 / 0.270
G21     268.9          15.4                9.1 +/-    1.61      22.3 +/-    1.61  0.110 / 0.250
G25     243.0          53.8                9.0 +/-    2.62      10.8 +/-    2.62  0.100 / 0.350
G29     326.1          51.3                8.8 +/-    1.54      11.0 +/-    1.54  0.060 / 0.040