PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/17-00:27:50
G02     12.7           70.1               10.1 +/-    0.49      10.7 +/-    0.49  0.030 / 0.030
G05     157.2          45.0               13.8 +/-    0.90      18.6 +/-    0.90  0.030 / 0.030
G06     45.2           30.1                9.0 +/-    2.07      15.6 +/-    2.07  0.040 / 0.060
G12     272.3          79.7               10.9 +/-    1.52      11.1 +/-    1.52  0.040 / 0.060
G19     83.9           22.2               12.1 +/-    2.24      25.3 +/-    2.24  0.140 / 0.210
G24     220.5          15.3               18.0 +/-    2.66      44.3 +/-    2.66  0.140 / 0.260
G25     314.3          37.8               10.1 +/-    1.44      15.2 +/-    1.44  0.060 / 0.070
G29     293.6          14.5               10.2 +/-    1.51      25.8 +/-    1.51  0.050 / 0.070