PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/01-01:27:30
G10     243.0          19.8               13.6 +/-    3.47      30.0 +/-    3.47  0.130 / 0.390
G13     63.4           34.3                9.1 +/-    1.35      14.6 +/-    1.35  0.110 / 0.330
G15     109.3          57.3               12.3 +/-    0.42      14.3 +/-    0.42  0.040 / 0.050
G16     303.9          15.5                7.0 +/-    1.16      17.3 +/-    1.16  0.060 / 0.050
G20     255.5          39.0               12.3 +/-    3.41      18.2 +/-    3.41  0.030 / 0.040
G21     322.1          53.0               10.7 +/-    0.58      13.0 +/-    0.58  0.030 / 0.040
G26     275.6          19.0                9.3 +/-    1.04      21.0 +/-    1.04  0.080 / 0.110
G29     162.1          61.9               12.3 +/-    0.64      13.8 +/-    0.64  0.080 / 0.090