PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/09/03-22:43:00
G10     259.2          32.4               19.5 +/-    2.18      32.5 +/-    2.18  0.130 / 0.440
G13     47.0           25.4               15.8 +/-    0.74      30.6 +/-    0.74  0.130 / 0.420
G15     70.0           54.3               19.2 +/-    0.50      23.0 +/-    0.50  0.030 / 0.040
G16     289.1          13.2               16.0 +/-    3.27      41.5 +/-    3.27  0.040 / 0.050
G18     285.0          61.1               18.1 +/-    0.62      20.4 +/-    0.62  0.170 / 0.430
G20     49.8           39.9               16.4 +/-    1.04      23.9 +/-    1.04  0.180 / 0.420
G21     349.1          67.5               16.3 +/-    0.75      17.5 +/-    0.75  0.130 / 0.300
G26     262.0          11.3               17.5 +/-    1.41      47.5 +/-    1.41  0.150 / 0.380
G27     320.7          14.4               12.8 +/-    2.12      32.5 +/-    2.12  0.080 / 0.200
G29     165.6          35.8               21.2 +/-    1.20      33.1 +/-    1.20  0.070 / 0.190