PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/12/23-18:28:10
G08     271.3          19.3                8.5 +/-    3.06      19.0 +/-    3.06  0.190 / 0.140
G10     53.2           60.2                9.7 +/-    0.66      11.0 +/-    0.66  0.180 / 0.220
G11     314.3          14.1                7.9 +/-    2.84      20.0 +/-    2.84  0.130 / 0.320
G14     259.3          63.9               10.4 +/-    1.10      11.4 +/-    1.10  0.130 / 0.310
G18     89.4           37.0                9.9 +/-    1.09      15.2 +/-    1.09  0.100 / 0.100
G21     152.4          14.2               12.2 +/-    2.93      31.0 +/-    2.93  0.080 / 0.110
G24     41.8           13.7                7.8 +/-    4.08      19.9 +/-    4.08  0.030 / 0.020
G27     233.4          17.9               10.1 +/-    3.63      23.4 +/-    3.63  0.020 / 0.020
G31     180.0          25.5               12.5 +/-    2.22      24.2 +/-    2.22  0.040 / 0.050
G32     321.9          75.4               10.1 +/-    0.49      10.4 +/-    0.49  0.040 / 0.040