PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/13-14:57:50
G10     296.4          52.4                6.5 +/-    1.77       7.9 +/-    1.77  0.050 / 0.080
G15     45.9           26.3                6.1 +/-    1.62      11.6 +/-    1.62  0.060 / 0.100
G20     356.4          65.2                6.4 +/-    0.53       7.0 +/-    0.53  0.040 / 0.030
G21     91.0           74.2                7.1 +/-    0.38       7.4 +/-    0.38  0.040 / 0.040
G24     101.7          25.9                9.0 +/-    1.77      17.2 +/-    1.77  0.140 / 0.360
G27     302.9          33.7                6.0 +/-    2.26       9.8 +/-    2.26  0.150 / 0.390
G29     168.0          10.4                7.7 +/-    1.81      21.2 +/-    1.81  0.060 / 0.070
G32     208.7          31.5                6.6 +/-    1.38      11.3 +/-    1.38  0.080 / 0.050