PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/16-00:12:50
G10     264.7          36.0               10.9 +/-    1.30      17.0 +/-    1.30  0.090 / 0.100
G13     43.5           21.3                8.5 +/-    1.03      18.2 +/-    1.03  0.080 / 0.080
G15     63.0           51.6               10.7 +/-    1.14      13.2 +/-    1.14  0.050 / 0.050
G16     283.0          12.0               10.1 +/-    2.50      26.8 +/-    2.50  0.050 / 0.050
G18     294.9          63.1                9.4 +/-    0.50      10.4 +/-    0.50  0.150 / 0.450
G20     53.8           35.2                8.6 +/-    0.66      13.6 +/-    0.66  0.180 / 0.400
G21     358.8          70.9               10.2 +/-    0.76      10.7 +/-    0.76  0.040 / 0.100
G24     123.1          12.7                9.1 +/-    2.84      23.8 +/-    2.84  0.040 / 0.120
G27     318.6          18.8                9.1 +/-    1.63      20.7 +/-    1.63  0.110 / 0.160
G29     166.8          30.7               11.9 +/-    1.25      20.6 +/-    1.25  0.110 / 0.200