PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/15-20:43:10
G10     254.5          30.1               10.6 +/-    1.07      18.5 +/-    1.07  0.040 / 0.060
G13     49.6           27.0                8.3 +/-    1.53      15.5 +/-    1.53  0.060 / 0.060
G15     86.4           59.8                9.8 +/-    0.80      11.1 +/-    0.80  0.160 / 0.610
G16     290.6          15.3                7.7 +/-    3.17      18.9 +/-    3.17  0.140 / 0.500
G20     276.1          53.6               11.0 +/-    0.91      13.2 +/-    0.91  0.090 / 0.180
G21     339.8          63.3                9.9 +/-    0.32      11.0 +/-    0.32  0.070 / 0.200
G26     263.4          13.7                9.5 +/-    2.20      24.5 +/-    2.20  0.020 / 0.040
G29     166.0          45.5               11.1 +/-    0.70      14.8 +/-    0.70  0.040 / 0.040