PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/16-18:27:50
G01     301.3          38.5                7.3 +/-    2.71      10.9 +/-    2.71  0.070 / 0.130
G10     110.5          34.6                9.2 +/-    0.71      14.7 +/-    0.71  0.060 / 0.090
G11     281.5          25.5                8.0 +/-    1.15      15.5 +/-    1.15  0.040 / 0.050
G14     355.8          66.6                6.3 +/-    0.84       6.8 +/-    0.84  0.040 / 0.050
G22     311.5          28.4                6.2 +/-    1.08      11.2 +/-    1.08  0.070 / 0.080
G25     77.9           17.0                9.3 +/-    2.14      22.0 +/-    2.14  0.060 / 0.080
G31     162.7          68.7                7.6 +/-    0.28       8.1 +/-    0.28  0.110 / 0.120
G32     42.1           48.0                6.8 +/-    0.88       8.9 +/-    0.88  0.080 / 0.130