PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/28-17:12:50
G08     267.6          19.4                9.0 +/-    3.14      20.0 +/-    3.14  0.210 / 0.290
G10     57.4           58.8               11.6 +/-    0.66      13.3 +/-    0.66  0.120 / 0.310
G11     312.4          16.7                1.3 +/-   16.48       3.2 +/-   16.48  0.020 / 0.020
G14     262.0          65.5               13.4 +/-    0.90      14.5 +/-    0.90  0.030 / 0.020
G18     312.4          33.0                9.8 +/-    1.16      16.1 +/-    1.16  0.060 / 0.040
G20     93.0           38.1               12.3 +/-    1.51      18.4 +/-    1.51  0.070 / 0.050
G21     153.4          14.2               13.2 +/-    1.85      33.4 +/-    1.85  0.090 / 0.250
G27     236.3          18.3               11.5 +/-    2.26      26.4 +/-    2.26  0.100 / 0.250
G31     181.9          24.1               11.0 +/-    1.14      22.0 +/-    1.14  0.250 / 0.330
G32     323.8          75.3               11.8 +/-    0.33      12.2 +/-    0.33  0.130 / 0.250