PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/10/30-18:12:40
G10     245.1          21.0               15.7 +/-   27.97      33.6 +/-   27.97  0.160 / 0.310
G13     61.6           34.4               13.1 +/-   29.40      21.1 +/-   29.40  0.130 / 0.320
G15     99.0           57.2               16.2 +/-   30.80      18.8 +/-   30.80  0.060 / 0.050
G16     307.6          12.7               12.0 +/-   28.07      31.5 +/-   28.07  0.060 / 0.050
G18     260.5          52.6               15.7 +/-   29.21      19.1 +/-   29.21  0.060 / 0.060
G20     37.0           55.5               14.0 +/-   28.07      16.5 +/-   28.07  0.060 / 0.050
G21     329.4          57.9               14.1 +/-   28.98      16.3 +/-   28.98  0.140 / 0.400
G26     279.1          17.2               10.5 +/-    3.39      24.8 +/-    3.39  0.120 / 0.390
G29     159.4          51.1               17.4 +/-   28.26      21.7 +/-   28.26  0.050 / 0.130