PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/14-01:12:30
G02     30.3           57.9                8.5 +/-    0.62       9.8 +/-    0.62  0.030 / 0.030
G05     142.6          59.2               11.5 +/-    0.71      13.2 +/-    0.71  0.030 / 0.030
G06     51.9           18.3                6.8 +/-    2.45      15.6 +/-    2.45  0.030 / 0.030
G12     204.4          71.8               10.4 +/-    0.87      10.8 +/-    0.87  0.040 / 0.040
G19     96.4           13.4                9.3 +/-    2.32      24.1 +/-    2.32  0.210 / 0.250
G25     302.9          50.1                8.3 +/-    4.21      10.5 +/-    4.21  0.210 / 0.230
G29     304.2          24.3                8.8 +/-    1.28      17.4 +/-    1.28  0.070 / 0.070