PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/25-03:27:40
G01     316.7          22.5                2.2 +/-    1.57       4.6 +/-    1.57  0.080 / 0.260
G08     251.0          10.3                6.6 +/-    3.10      18.2 +/-    3.10  0.100 / 0.270
G10     87.0           51.0                4.5 +/-    0.62       5.6 +/-    0.62  0.080 / 0.200
G11     296.2          27.0                3.5 +/-    1.77       6.6 +/-    1.77  0.090 / 0.190
G14     320.3          71.5                4.3 +/-    0.61       4.6 +/-    0.61  0.050 / 0.040
G18     105.9          26.2                5.4 +/-    1.60      10.3 +/-    1.60  0.050 / 0.050
G22     303.1          14.5                4.3 +/-    2.39      10.8 +/-    2.39  0.130 / 0.380
G25     92.5           10.8               -1.4 +/-   24.90      -4.0 +/-   24.90  0.120 / 0.390
G31     175.7          47.2                5.6 +/-    1.16       7.3 +/-    1.16  0.040 / 0.050
G32     13.2           64.7                3.4 +/-    0.77       3.8 +/-    0.77  0.040 / 0.040