PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/11/19-20:42:50
G08     272.6          20.2               18.4 +/-    2.51      40.2 +/-    2.51  0.100 / 0.170
G10     48.3           61.0                8.9 +/-    0.78      10.1 +/-    0.78  0.110 / 0.160
G11     315.0          13.4                8.7 +/-    2.30      22.4 +/-    2.30  0.090 / 0.310
G14     255.7          63.0               10.1 +/-    0.50      11.2 +/-    0.50  0.110 / 0.330
G18     86.6           39.0               10.8 +/-    0.75      16.0 +/-    0.75  0.070 / 0.110
G21     152.1          17.2               10.2 +/-    3.03      24.2 +/-    3.03  0.050 / 0.130
G24     43.0           15.5                9.1 +/-    0.94      22.4 +/-    0.94  0.110 / 0.250
G27     235.1          19.5               11.3 +/-    1.22      25.2 +/-    1.22  0.080 / 0.240
G31     181.6          21.9               11.9 +/-    2.21      25.0 +/-    2.21  0.070 / 0.050
G32     307.4          75.5               10.3 +/-    0.38      10.6 +/-    0.38  0.070 / 0.050