PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/04/25-01:12:30
G02     291.6          82.0                9.2 +/-    0.93       9.2 +/-    0.93  0.030 / 0.120
G05     167.1          25.1               17.1 +/-    1.34      33.3 +/-    1.34  0.030 / 0.050
G06     40.0           49.4                8.9 +/-    0.64      11.3 +/-    0.64  0.050 / 0.140
G12     320.0          61.0               11.5 +/-    0.87      12.9 +/-    0.87  0.100 / 0.140
G17     76.4           20.7               10.3 +/-    0.96      22.2 +/-    0.96  0.040 / 0.030
G19     65.4           34.0               10.1 +/-    0.66      16.4 +/-    0.66  0.030 / 0.030
G24     236.5          29.3               13.2 +/-    1.48      23.4 +/-    1.48  0.100 / 0.230
G25     317.8          19.3                9.0 +/-    0.52      20.2 +/-    0.52  0.110 / 0.280