PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/07-14:27:50
G10     264.9          38.6                6.6 +/-    1.22       9.8 +/-    1.22  0.160 / 0.260
G13     42.6           18.8                4.9 +/-    3.83      11.0 +/-    3.83  0.140 / 0.260
G15     59.0           47.5                5.9 +/-    0.64       7.7 +/-    0.64  0.220 / 0.320
G16     280.6          13.5                5.7 +/-    1.93      14.8 +/-    1.93  0.210 / 0.310
G20     298.6          61.4                6.2 +/-    0.79       7.0 +/-    0.79  0.050 / 0.090
G21     0.3            70.4                5.1 +/-    0.38       5.3 +/-    0.38  0.060 / 0.090
G24     124.2          12.6                9.8 +/-    2.91      25.9 +/-    2.91  0.040 / 0.040
G27     319.8          16.9                4.2 +/-    1.79       9.9 +/-    1.79  0.040 / 0.040
G29     167.1          35.1                7.4 +/-    0.66      11.7 +/-    0.66  0.150 / 0.450