PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/25-15:13:00
G10     298.6          52.5                5.5 +/-    0.87       6.8 +/-    0.87  0.030 / 0.040
G14     210.0          12.7                4.7 +/-    3.37      12.5 +/-    3.37  0.030 / 0.040
G15     46.2           28.6                1.4 +/-    1.11       2.5 +/-    1.11  0.080 / 0.120
G20     353.9          65.3                3.5 +/-    1.79       3.8 +/-    1.79  0.090 / 0.150
G21     103.6          70.3                5.0 +/-    1.41       5.3 +/-    1.41  0.130 / 0.440
G24     92.7           26.1                7.6 +/-    0.69      14.4 +/-    0.69  0.090 / 0.440
G27     302.5          32.6                4.7 +/-    1.08       7.8 +/-    1.08  0.040 / 0.040
G32     210.8          31.2                5.7 +/-    2.70       9.8 +/-    2.70  0.030 / 0.030