PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-01:13:10
G10     243.8          20.6               12.9 +/-    2.50      27.9 +/-    2.50  0.100 / 0.410
G13     62.2           33.9                9.7 +/-    1.47      15.7 +/-    1.47  0.100 / 0.440
G15     107.5          57.7               11.6 +/-    0.40      13.5 +/-    0.40  0.040 / 0.050
G16     302.8          15.6                6.1 +/-    1.60      15.0 +/-    1.60  0.040 / 0.050
G20     255.6          37.6               12.9 +/-    3.42      19.6 +/-    3.42  0.070 / 0.120
G21     323.2          53.7               10.5 +/-    0.58      12.6 +/-    0.58  0.060 / 0.080
G26     274.6          18.7                8.8 +/-    1.81      19.9 +/-    1.81  0.030 / 0.040
G29     162.5          60.7               11.6 +/-    0.63      13.1 +/-    0.63  0.040 / 0.040