PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/16-23:13:00
G02     231.0          72.4               14.7 +/-    0.80      15.3 +/-    0.80  0.050 / 0.060
G05     172.6          13.0               23.0 +/-    4.25      60.0 +/-    4.25  0.040 / 0.070
G06     42.5           62.3               13.2 +/-    0.56      14.7 +/-    0.56  0.070 / 0.230
G12     321.4          47.9               12.1 +/-    1.09      15.7 +/-    1.09  0.060 / 0.230
G17     65.6           27.7               11.1 +/-    0.79      20.4 +/-    0.79  0.030 / 0.040
G19     51.1           42.8               12.1 +/-    1.11      16.8 +/-    1.11  0.040 / 0.050
G24     250.1          37.3               17.3 +/-    1.58      26.3 +/-    1.58  0.050 / 0.060