PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/27-05:58:00
G01     307.4          32.9                2.7 +/-    1.81       4.4 +/-    1.81  0.040 / 0.050
G10     104.8          41.7                4.2 +/-    0.75       6.0 +/-    0.75  0.040 / 0.040
G11     280.0          29.9                4.1 +/-    1.89       7.2 +/-    1.89  0.120 / 0.140
G14     359.6          66.6                1.2 +/-    0.57       1.3 +/-    0.57  0.100 / 0.140
G18     116.2          16.7                3.5 +/-    1.91       8.3 +/-    1.91  0.070 / 0.050
G22     309.4          26.2                3.0 +/-    0.85       5.6 +/-    0.85  0.050 / 0.040
G25     78.3           15.6                3.8 +/-    1.03       9.3 +/-    1.03  0.040 / 0.020
G31     167.4          64.2                5.2 +/-    0.58       5.7 +/-    0.58  0.050 / 0.020
G32     34.3           53.7                4.0 +/-    1.31       4.8 +/-    1.31  0.100 / 0.200