PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/15-23:42:40
G10     252.0          26.9               12.5 +/-    1.12      23.3 +/-    1.12  0.070 / 0.140
G13     53.1           30.4               10.0 +/-    0.68      17.4 +/-    0.68  0.070 / 0.150
G15     85.8           57.9               11.7 +/-    0.46      13.5 +/-    0.46  0.040 / 0.040
G16     296.1          14.4                9.0 +/-    1.44      22.7 +/-    1.44  0.040 / 0.060
G18     270.9          56.3               11.1 +/-    0.58      13.1 +/-    0.58  0.090 / 0.280
G20     44.6           46.0                8.2 +/-    0.68      10.9 +/-    0.68  0.100 / 0.260
G21     335.9          61.7                9.0 +/-    0.55      10.1 +/-    0.55  0.030 / 0.050
G26     268.5          14.8               10.4 +/-    2.18      26.0 +/-    2.18  0.040 / 0.070
G29     164.3          45.2               11.7 +/-    0.50      15.7 +/-    0.50  0.050 / 0.080