PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-04:42:30
G01     306.4          33.6                4.5 +/-    1.00       7.3 +/-    1.00  0.060 / 0.140
G10     106.1          40.8                5.8 +/-    0.32       8.4 +/-    0.32  0.060 / 0.160
G11     278.9          29.7                5.9 +/-    1.72      10.4 +/-    1.72  0.060 / 0.100
G14     2.2            66.0                4.4 +/-    0.72       4.7 +/-    0.72  0.060 / 0.100
G18     117.1          15.2                4.2 +/-    1.73      10.3 +/-    1.73  0.040 / 0.060
G22     309.7          26.5                1.8 +/-    1.35       3.5 +/-    1.35  0.050 / 0.050
G25     77.2           16.0                3.5 +/-    0.96       8.6 +/-    0.96  0.080 / 0.290
G31     167.7          65.0                5.7 +/-    1.25       6.2 +/-    1.25  0.130 / 0.320
G32     34.9           53.3                3.7 +/-    0.41       4.4 +/-    0.41  0.030 / 0.050