PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-04:42:40
G01     304.7          34.7                5.8 +/-    1.49       9.2 +/-    1.49  0.040 / 0.070
G10     108.1          39.4                5.8 +/-    1.11       8.6 +/-    1.11  0.040 / 0.070
G11     276.8          29.6                6.3 +/-    0.94      11.0 +/-    0.94  0.060 / 0.110
G14     5.9            65.0                3.8 +/-    0.97       4.1 +/-    0.97  0.060 / 0.110
G18     118.4          13.8                5.8 +/-    1.66      14.7 +/-    1.66  0.070 / 0.100
G22     310.4          28.0                3.8 +/-    1.60       6.9 +/-    1.60  0.050 / 0.100
G25     75.4           16.4                4.5 +/-    1.13      10.9 +/-    1.13  0.040 / 0.050
G31     166.0          67.0                6.1 +/-    1.30       6.6 +/-    1.30  0.030 / 0.050
G32     36.9           52.0                4.6 +/-    0.38       5.6 +/-    0.38  0.080 / 0.260