PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/14-18:12:40
G01     310.9          31.9                7.9 +/-    1.04      13.2 +/-    1.04  0.110 / 0.180
G10     99.6           42.1                9.2 +/-    0.94      12.9 +/-    0.94  0.100 / 0.260
G11     292.9          24.7                7.4 +/-    1.62      14.6 +/-    1.62  0.040 / 0.050
G14     328.1          69.8                6.9 +/-    0.54       7.3 +/-    0.54  0.040 / 0.050
G20     117.4          15.4                9.1 +/-    2.65      22.3 +/-    2.65  0.040 / 0.050
G22     307.6          19.9                6.1 +/-    2.20      13.4 +/-    2.20  0.050 / 0.050
G25     88.3           13.9                9.8 +/-    2.80      24.9 +/-    2.80  0.180 / 0.400
G31     171.5          57.1                8.2 +/-    0.38       9.6 +/-    0.38  0.130 / 0.240
G32     31.2           55.7                7.9 +/-    0.70       9.3 +/-    0.70  0.040 / 0.040