PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/11/20-21:58:10
G01     240.7          31.7               12.5 +/-    1.69      21.1 +/-    1.69  0.040 / 0.040
G03     314.7          48.7                6.8 +/-    1.35       8.7 +/-    1.35  0.040 / 0.040
G14     62.8           41.1                7.4 +/-    0.89      10.6 +/-    0.89  0.040 / 0.100
G16     157.8          25.0               10.2 +/-    1.27      20.0 +/-    1.27  0.050 / 0.100
G22     294.1          70.0                9.2 +/-    0.70       9.8 +/-    0.70  0.100 / 0.310
G23     291.6          23.5                8.0 +/-    1.73      16.2 +/-    1.73  0.080 / 0.270
G26     129.6          43.3               11.1 +/-    1.00      15.3 +/-    1.00  0.060 / 0.170
G31     41.1           51.5                6.9 +/-    0.90       8.6 +/-    0.90  0.070 / 0.160
G32     83.0           17.5                7.9 +/-    1.44      18.5 +/-    1.44  0.040 / 0.060