PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/08-22:12:30
G03     235.4          67.3                9.1 +/-    1.07       9.8 +/-    1.07  0.080 / 0.060
G09     306.4          24.7                7.1 +/-    1.44      14.0 +/-    1.44  0.050 / 0.070
G14     99.8           16.5                9.0 +/-    2.15      21.7 +/-    2.15  0.160 / 0.490
G16     117.5          59.9               10.4 +/-    0.52      11.8 +/-    0.52  0.140 / 0.460
G22     195.9          53.2               10.5 +/-    1.28      12.8 +/-    1.28  0.050 / 0.070
G23     320.9          50.8                6.9 +/-    1.24       8.7 +/-    1.24  0.060 / 0.050
G26     65.8           50.2                6.9 +/-    1.25       8.7 +/-    1.25  0.030 / 0.040
G31     53.7           17.8                5.9 +/-    1.42      13.7 +/-    1.42  0.040 / 0.040