PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/28-01:42:30
G10     243.9          20.7               16.3 +/-    2.57      35.2 +/-    2.57  0.040 / 0.060
G13     62.1           33.8               11.2 +/-    0.89      18.2 +/-    0.89  0.040 / 0.050
G15     106.6          57.6               13.9 +/-    0.62      16.1 +/-    0.62  0.110 / 0.650
G16     302.8          15.6                7.2 +/-    3.04      17.7 +/-    3.04  0.110 / 0.540
G20     257.5          41.5               11.9 +/-    1.41      16.8 +/-    1.41  0.080 / 0.130
G21     323.4          53.8               14.5 +/-    1.35      17.5 +/-    1.35  0.070 / 0.180
G26     274.4          18.6               11.0 +/-    0.67      25.0 +/-    0.67  0.030 / 0.050
G29     162.6          60.5               15.0 +/-    0.67      16.9 +/-    0.67  0.030 / 0.040