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                6.0 +/-    2.75      10.1 +/-    2.75  0.110 / 0.260
G10     99.6           42.1                8.9 +/-    0.69      12.6 +/-    0.69  0.110 / 0.250
G11     292.9          24.7                7.0 +/-    1.19      13.8 +/-    1.19  0.060 / 0.120
G14     328.1          69.8                6.4 +/-    0.70       6.8 +/-    0.70  0.060 / 0.120
G20     117.4          15.4                8.4 +/-    2.32      20.7 +/-    2.32  0.040 / 0.050
G22     307.6          19.9                7.1 +/-    1.63      15.8 +/-    1.63  0.040 / 0.040
G25     88.3           13.9                9.7 +/-    1.43      24.7 +/-    1.43  0.140 / 0.220
G31     171.5          57.1                9.1 +/-    1.37      10.6 +/-    1.37  0.320 / 0.230
G32     31.2           55.7                6.9 +/-    0.88       8.1 +/-    0.88  0.040 / 0.040