PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/08-22:28:10
G02     53.5           38.1                8.6 +/-    1.41      12.9 +/-    1.41  0.050 / 0.080
G05     69.9           65.9                9.5 +/-    0.42      10.3 +/-    0.42  0.060 / 0.080
G12     183.9          37.8               11.0 +/-    0.86      16.7 +/-    0.86  0.030 / 0.030
G13     133.2          10.7                3.0 +/-   24.33       8.3 +/-   24.33  0.030 / 0.030
G21     265.7          12.3               10.6 +/-    3.13      28.1 +/-    3.13  0.310 / 0.450
G25     247.8          55.9               10.6 +/-    1.67      12.5 +/-    1.67  0.300 / 0.470
G29     323.2          47.1                9.6 +/-    0.52      12.6 +/-    0.52  0.170 / 0.400