PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/10-13:58:10
G10     257.2          33.7                4.7 +/-    1.21       7.6 +/-    1.21  0.120 / 0.290
G13     47.1           24.1                3.5 +/-    1.02       7.0 +/-    1.02  0.150 / 0.490
G15     68.4           52.3                5.0 +/-    0.54       6.2 +/-    0.54  0.140 / 0.500
G16     287.9          15.3                2.6 +/-    2.76       6.5 +/-    2.76  0.040 / 0.050
G20     284.7          57.9                6.2 +/-    1.03       7.2 +/-    1.03  0.050 / 0.050
G21     346.3          65.5                1.6 +/-    0.94       1.7 +/-    0.94  0.040 / 0.070
G26     262.3          12.5                3.8 +/-    2.18      10.1 +/-    2.18  0.050 / 0.060
G27     322.0          10.8              -13.7 +/-   21.38     -37.6 +/-   21.38  0.050 / 0.170
G29     165.6          43.3                6.7 +/-    0.69       9.3 +/-    0.69  0.050 / 0.160