PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/25-01:27:50
G10     258.1          31.5               12.0 +/-    1.45      20.3 +/-    1.45  0.110 / 0.390
G13     47.6           26.0                8.3 +/-    1.64      15.9 +/-    1.64  0.140 / 0.410
G15     74.5           56.4               10.4 +/-    1.93      12.2 +/-    1.93  0.140 / 0.130
G16     288.8          13.7                8.6 +/-    1.08      22.1 +/-    1.08  0.090 / 0.100
G18     281.1          59.5                2.7 +/-   31.17       3.0 +/-   31.17  0.390 / 0.430
G20     49.4           40.1                8.2 +/-    1.27      11.9 +/-    1.27  0.250 / 0.400
G26     261.6          12.0               10.2 +/-   22.72      27.2 +/-   22.72  0.180 / 0.240
G27     321.0          13.4                7.0 +/-    5.61      18.2 +/-    5.61  0.110 / 0.250
G29     166.2          38.6               11.0 +/-    3.07      16.4 +/-    3.07  0.040 / 0.050