PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/25-15:43:00
G08     313.5          17.4                3.8 +/-    1.85       9.0 +/-    1.85  0.040 / 0.050
G10     320.9          58.1                5.0 +/-    0.70       5.8 +/-    0.70  0.030 / 0.050
G14     214.6          25.3                8.4 +/-    3.32      16.3 +/-    3.32  0.050 / 0.100
G15     46.0           16.7                3.3 +/-    0.73       7.9 +/-    0.73  0.050 / 0.080
G20     24.8           62.7                4.2 +/-    0.68       4.7 +/-    0.68  0.080 / 0.280
G21     127.4          59.3                7.2 +/-    0.67       8.2 +/-    0.67  0.090 / 0.240
G24     77.3           28.5                4.6 +/-    0.44       8.3 +/-    0.44  0.030 / 0.040
G27     286.7          36.6                5.4 +/-    1.54       8.4 +/-    1.54  0.040 / 0.030
G32     218.0          44.5                8.6 +/-    1.90      11.7 +/-    1.90  0.050 / 0.090