PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/27-23:27:50
G02     58.8           33.5               10.1 +/-    0.57      16.4 +/-    0.57  0.160 / 0.580
G05     58.4           61.0                9.6 +/-    0.63      10.8 +/-    0.63  0.130 / 0.510
G12     183.3          31.5               13.6 +/-    0.83      23.1 +/-    0.83  0.030 / 0.040
G13     128.5          14.8               16.8 +/-    1.21      41.9 +/-    1.21  0.030 / 0.040
G15     165.2          11.1                8.3 +/-   33.12      22.7 +/-   33.12  0.070 / 0.150
G21     270.6          16.2               13.7 +/-    2.55      33.1 +/-    2.55  0.080 / 0.100
G25     237.7          52.3               10.5 +/-    1.35      12.9 +/-    1.35  0.050 / 0.110
G29     327.1          52.9               10.6 +/-    1.01      13.0 +/-    1.01  0.050 / 0.100