PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/24-17:27:50
G08     268.2          19.6                4.5 +/-    3.08      10.0 +/-    3.08  0.170 / 0.370
G10     56.2           59.0                8.5 +/-    0.91       9.8 +/-    0.91  0.140 / 0.460
G11     312.8          16.3               -2.2 +/-   14.04      -5.4 +/-   14.04  0.030 / 0.030
G14     260.7          65.1                9.4 +/-    0.75      10.2 +/-    0.75  0.030 / 0.030
G18     312.8          32.4                5.2 +/-    1.08       8.7 +/-    1.08  0.140 / 0.320
G20     92.4           38.5                8.5 +/-    0.86      12.7 +/-    0.86  0.150 / 0.350
G21     153.3          15.0                8.7 +/-    1.29      21.7 +/-    1.29  0.080 / 0.050
G27     236.7          18.7                5.9 +/-    2.14      13.4 +/-    2.14  0.080 / 0.050
G31     181.8          23.7                7.4 +/-    2.11      15.0 +/-    2.11  0.080 / 0.440
G32     321.8          75.4                8.0 +/-    0.35       8.3 +/-    0.35  0.100 / 0.270