PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/02-21:57:40
G02     226.7          69.5               17.2 +/-    1.34      18.2 +/-    1.34  0.050 / 0.070
G05     173.8          10.8                8.2 +/-   50.81      22.6 +/-   50.81  0.040 / 0.060
G06     43.9           64.5               15.2 +/-    0.41      16.6 +/-    0.41  0.060 / 0.100
G12     321.3          46.1               13.5 +/-    1.21      17.9 +/-    1.21  0.050 / 0.110
G17     64.0           28.5               12.4 +/-    0.79      22.4 +/-    0.79  0.040 / 0.120
G19     48.1           44.7               13.9 +/-    0.32      18.8 +/-    0.32  0.050 / 0.120
G24     252.7          38.4               17.7 +/-    1.16      26.4 +/-    1.16  0.130 / 0.260