PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/08-22:43:00
G01     243.5          31.1                9.2 +/-    2.00      15.8 +/-    2.00  0.040 / 0.030
G03     313.6          50.3                6.6 +/-    0.74       8.2 +/-    0.74  0.030 / 0.030
G14     67.9           36.2                8.1 +/-    1.08      12.5 +/-    1.08  0.040 / 0.060
G16     163.0          22.7                9.9 +/-    2.25      20.5 +/-    2.25  0.050 / 0.040
G22     292.7          71.2                8.3 +/-    0.52       8.7 +/-    0.52  0.100 / 0.210
G23     291.6          23.0                7.9 +/-    1.86      16.1 +/-    1.86  0.070 / 0.170
G26     132.0          43.1               10.4 +/-    0.90      14.4 +/-    0.90  0.050 / 0.100
G31     39.6           53.6                7.5 +/-    0.86       9.1 +/-    0.86  0.060 / 0.090
G32     82.9           19.4                6.5 +/-    2.48      14.6 +/-    2.48  0.110 / 0.120