PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/02-02:57:30
G02     51.7           38.9                6.8 +/-    0.52      10.1 +/-    0.52  0.040 / 0.060
G05     77.8           67.1                9.1 +/-    0.36       9.8 +/-    0.36  0.040 / 0.070
G12     187.3          44.4               11.3 +/-    1.85      15.4 +/-    1.85  0.020 / 0.040
G20     213.6          13.2               10.1 +/-    2.28      26.1 +/-    2.28  0.030 / 0.040
G21     262.8          10.5               -3.1 +/-   20.96      -8.5 +/-   20.96  0.070 / 0.560
G25     257.7          57.3               10.5 +/-    0.44      12.2 +/-    0.44  0.090 / 0.490
G29     321.0          44.1                8.7 +/-    0.78      11.9 +/-    0.78  0.060 / 0.090