PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-00:28:00
G05     48.8           18.8                6.6 +/-    1.39      14.9 +/-    1.39  0.100 / 0.360
G10     237.0          12.2               14.3 +/-    3.85      37.9 +/-    3.85  0.130 / 0.390
G13     75.8           37.3               10.1 +/-    1.10      15.4 +/-    1.10  0.060 / 0.140
G15     127.0          52.4               13.1 +/-    0.70      16.0 +/-    0.70  0.070 / 0.130
G16     314.4          11.9                8.6 +/-    3.21      23.1 +/-    3.21  0.090 / 0.320
G18     246.0          41.6               13.3 +/-    0.78      18.9 +/-    0.78  0.100 / 0.270
G20     30.8           63.9               10.4 +/-    0.75      11.4 +/-    0.75  0.070 / 0.080
G21     313.5          47.6               10.0 +/-    1.21      13.0 +/-    1.21  0.090 / 0.080
G26     287.8          20.0                8.8 +/-    1.26      19.4 +/-    1.26  0.030 / 0.040
G29     156.1          69.1               10.2 +/-    0.75      10.8 +/-    0.75  0.030 / 0.050