PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/26-06:12:40
G01     302.8          35.8                5.3 +/-    2.37       8.3 +/-    2.37  0.040 / 0.030
G10     109.9          38.1                4.8 +/-    0.66       7.2 +/-    0.66  0.030 / 0.030
G11     274.3          29.6                7.4 +/-    1.16      13.0 +/-    1.16  0.080 / 0.050
G14     9.5            63.9                3.2 +/-    0.66       3.5 +/-    0.66  0.080 / 0.050
G18     119.4          13.0                4.5 +/-    1.82      11.8 +/-    1.82  0.040 / 0.020
G22     311.2          30.3                4.8 +/-    2.46       8.4 +/-    2.46  0.070 / 0.020
G25     73.3           16.7                4.0 +/-    1.11       9.6 +/-    1.11  0.060 / 0.100
G31     161.7          69.6                6.9 +/-    0.30       7.3 +/-    0.30  0.070 / 0.110
G32     39.7           50.1                3.8 +/-    1.26       4.8 +/-    1.26  0.050 / 0.040