PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/09-00:58:10
G10     244.2          21.0               11.0 +/-    2.74      23.7 +/-    2.74  0.120 / 0.400
G13     61.5           33.6                8.8 +/-    1.74      14.3 +/-    1.74  0.110 / 0.380
G15     106.5          57.9               10.7 +/-    0.36      12.4 +/-    0.36  0.030 / 0.040
G16     302.2          15.7                5.7 +/-    1.60      14.0 +/-    1.60  0.050 / 0.040
G20     255.3          35.8                9.8 +/-    2.93      15.3 +/-    2.93  0.070 / 0.090
G21     323.8          54.1                9.7 +/-    0.61      11.7 +/-    0.61  0.060 / 0.120
G26     274.0          18.5                8.6 +/-    2.48      19.6 +/-    2.48  0.030 / 0.030
G29     162.7          60.1               11.1 +/-    0.60      12.5 +/-    0.60  0.030 / 0.030