PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/28-16:13:10
G10     245.0          21.0                9.2 +/-    3.21      19.7 +/-    3.21  0.050 / 0.040
G13     61.6           34.3                9.7 +/-    0.94      15.5 +/-    0.94  0.060 / 0.040
G15     98.4           57.0               11.0 +/-    0.77      12.8 +/-    0.77  0.190 / 0.340
G16     307.3          12.9                6.1 +/-    3.46      15.9 +/-    3.46  0.170 / 0.240
G18     260.8          53.1                9.0 +/-    2.21      11.0 +/-    2.21  0.050 / 0.040
G20     35.8           56.6                8.2 +/-    0.71       9.6 +/-    0.71  0.060 / 0.040
G21     331.4          58.9                7.7 +/-    0.79       8.8 +/-    0.79  0.080 / 0.120
G26     277.8          17.5                8.0 +/-    1.54      18.7 +/-    1.54  0.060 / 0.120
G29     159.9          52.5               10.9 +/-    0.60      13.3 +/-    0.60  0.190 / 0.380