PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-21:43:00
G02     230.9          71.7                9.5 +/-    0.29      10.0 +/-    0.29  0.040 / 0.050
G05     172.9          12.8               15.8 +/-    2.59      41.5 +/-    2.59  0.030 / 0.050
G06     42.4           61.9                9.9 +/-    0.72      11.1 +/-    0.72  0.060 / 0.130
G12     321.7          48.8                8.4 +/-    0.78      10.8 +/-    0.78  0.060 / 0.090
G17     66.2           26.8                8.7 +/-    1.65      16.4 +/-    1.65  0.210 / 0.300
G19     50.6           43.2               10.5 +/-    1.27      14.6 +/-    1.27  0.210 / 0.300
G24     249.7          37.2               11.3 +/-    1.03      17.2 +/-    1.03  0.040 / 0.040