PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/18-21:42:30
G03     224.2          63.9               12.3 +/-    1.10      13.5 +/-    1.10  0.040 / 0.060
G07     252.7          12.0                8.2 +/-   18.17      21.8 +/-   18.17  0.050 / 0.060
G09     309.4          29.1                8.8 +/-    1.41      15.8 +/-    1.41  0.130 / 0.450
G14     103.8          13.0               12.0 +/-    2.92      31.2 +/-    2.92  0.170 / 0.330
G16     106.5          62.0               12.9 +/-    0.47      14.4 +/-    0.47  0.040 / 0.050
G22     192.8          47.9               12.9 +/-    0.58      16.7 +/-    0.58  0.040 / 0.050
G23     324.7          54.6               11.1 +/-    0.42      13.3 +/-    0.42  0.040 / 0.040
G26     59.8           47.4                8.6 +/-    0.71      11.2 +/-    0.71  0.040 / 0.040
G31     56.2           14.5                8.1 +/-    1.42      20.4 +/-    1.42  0.030 / 0.040