PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-20:28:10
G10     296.0          51.5               14.0 +/-    2.24      17.3 +/-    2.24  0.060 / 0.100
G15     47.0           33.1               10.2 +/-    1.77      16.8 +/-    1.77  0.050 / 0.080
G20     349.7          65.4               13.7 +/-    0.33      14.9 +/-    0.33  0.030 / 0.030
G21     93.7           74.3               13.2 +/-    0.59      13.7 +/-    0.59  0.040 / 0.030
G24     95.5           25.8               13.5 +/-    0.98      26.0 +/-    0.98  0.090 / 0.070
G27     302.9          32.8               13.6 +/-    1.07      22.5 +/-    1.07  0.060 / 0.110
G32     209.9          31.6               15.4 +/-    0.72      26.1 +/-    0.72  0.110 / 0.050