PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/15-17:27:40
G10     252.6          27.6               10.3 +/-    1.09      18.9 +/-    1.09  0.050 / 0.060
G13     52.3           29.7                9.4 +/-    1.37      16.6 +/-    1.37  0.050 / 0.050
G15     80.0           56.1               11.4 +/-    1.19      13.4 +/-    1.19  0.110 / 0.320
G16     299.1          13.2                6.7 +/-    2.23      17.4 +/-    2.23  0.120 / 0.440
G18     274.5          58.7                9.7 +/-    1.99      11.1 +/-    1.99  0.110 / 0.420
G20     43.2           48.0                8.9 +/-    1.11      11.5 +/-    1.11  0.130 / 0.340
G26     269.4          14.3                7.8 +/-    2.01      19.7 +/-    2.01  0.090 / 0.170
G29     162.7          41.4               12.8 +/-    1.36      18.1 +/-    1.36  0.090 / 0.140