PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/01-18:58:10
G08     269.6          20.1               10.4 +/-    3.16      22.7 +/-    3.16  0.050 / 0.060
G10     53.3           59.6                9.3 +/-    0.70      10.6 +/-    0.70  0.050 / 0.060
G11     313.7          15.3                9.9 +/-    3.26      24.4 +/-    3.26  0.100 / 0.340
G14     257.6          63.9               11.4 +/-    0.60      12.6 +/-    0.60  0.090 / 0.310
G20     90.8           39.5               10.6 +/-    0.65      15.5 +/-    0.65  0.140 / 0.250
G21     153.3          17.4                9.8 +/-    3.16      23.0 +/-    3.16  0.110 / 0.240
G27     237.5          19.5               12.3 +/-    1.40      27.4 +/-    1.40  0.110 / 0.160
G31     181.1          23.4               12.1 +/-    1.72      24.6 +/-    1.72  0.110 / 0.180
G32     318.7          75.8               11.6 +/-    0.71      12.0 +/-    0.71  0.170 / 0.170