PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/08-20:43:00
G08     319.7          12.2               12.1 +/-    1.81      32.1 +/-    1.81  0.080 / 0.090
G10     305.6          54.4               11.7 +/-    0.94      14.1 +/-    0.94  0.070 / 0.080
G14     211.6          16.2               18.6 +/-    2.10      44.8 +/-    2.10  0.030 / 0.040
G15     46.0           27.5                8.0 +/-    1.58      14.8 +/-    1.58  0.040 / 0.030
G20     4.9            64.8               12.5 +/-    0.70      13.7 +/-    0.70  0.100 / 0.230
G21     111.2          70.0               12.9 +/-    0.90      13.6 +/-    0.90  0.110 / 0.300
G24     88.5           27.6               10.8 +/-    1.60      19.9 +/-    1.60  0.200 / 0.270
G27     296.0          35.4               12.7 +/-    4.06      20.1 +/-    4.06  0.110 / 0.300
G32     212.7          37.9               14.9 +/-    1.61      22.5 +/-    1.61  0.070 / 0.110