PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/12/20-19:58:00
G01     239.5          31.2               10.6 +/-    1.63      18.1 +/-    1.63  0.040 / 0.040
G03     314.4          49.7               10.2 +/-    1.04      13.0 +/-    1.04  0.040 / 0.030
G14     64.5           39.7               10.0 +/-    1.27      14.6 +/-    1.27  0.050 / 0.090
G16     157.6          25.6               12.9 +/-    2.17      24.8 +/-    2.17  0.060 / 0.100
G22     291.1          71.2                8.6 +/-    0.63       9.0 +/-    0.63  0.130 / 0.190
G23     292.0          23.6                8.8 +/-    1.68      17.7 +/-    1.68  0.090 / 0.210
G26     129.5          43.8               12.1 +/-    0.62      16.6 +/-    0.62  0.050 / 0.060
G31     40.9           51.8                8.5 +/-    0.60      10.5 +/-    0.60  0.070 / 0.060
G32     83.8           16.7               10.8 +/-    2.11      25.7 +/-    2.11  0.080 / 0.170