PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-20:58:00
G01     228.2          19.2                9.6 +/-    1.56      21.6 +/-    1.56  0.150 / 0.210
G03     294.0          66.1                7.0 +/-    1.04       7.6 +/-    1.04  0.120 / 0.290
G14     84.2           25.3               10.3 +/-    0.93      20.0 +/-    0.93  0.100 / 0.270
G16     150.6          41.1               11.5 +/-    0.69      16.4 +/-    0.69  0.090 / 0.180
G22     224.9          72.6               10.4 +/-    0.54      10.9 +/-    0.54  0.030 / 0.050
G23     304.0          33.5                9.6 +/-    1.52      15.7 +/-    1.52  0.030 / 0.050
G26     108.3          54.0                9.4 +/-    0.36      11.4 +/-    0.36  0.050 / 0.110
G31     42.9           39.3                5.7 +/-    1.00       8.4 +/-    1.00  0.050 / 0.090