PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/12-23:28:10
G02     230.7          72.4               11.9 +/-    0.92      12.4 +/-    0.92  0.030 / 0.050
G05     172.7          12.9               18.0 +/-    3.74      47.0 +/-    3.74  0.030 / 0.060
G06     42.5           62.6               11.8 +/-    0.53      13.1 +/-    0.53  0.180 / 0.240
G12     321.4          47.6               11.5 +/-    1.28      15.0 +/-    1.28  0.070 / 0.250
G17     65.3           28.0               10.2 +/-    0.66      18.6 +/-    0.66  0.030 / 0.040
G19     51.0           42.8               10.6 +/-    0.89      14.7 +/-    0.89  0.030 / 0.040
G24     250.4          37.3               15.2 +/-    1.44      23.1 +/-    1.44  0.060 / 0.120