PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/02/06-18:28:00
G01     224.9          16.1                8.1 +/-   14.11      19.7 +/-   14.11  0.090 / 0.200
G03     280.4          69.8                9.0 +/-    0.43       9.6 +/-    0.43  0.120 / 0.220
G14     88.1           22.5                7.2 +/-    2.19      14.9 +/-    2.19  0.040 / 0.040
G16     149.6          44.3                9.1 +/-    1.26      12.4 +/-    1.26  0.030 / 0.040
G22     209.6          68.7               10.6 +/-    0.48      11.3 +/-    0.48  0.360 / 0.300
G23     307.4          36.8                8.8 +/-    1.07      13.5 +/-    1.07  0.400 / 0.280
G26     104.3          55.8                9.3 +/-    0.67      11.0 +/-    0.67  0.040 / 0.070
G31     44.7           34.8                7.9 +/-    0.73      12.5 +/-    0.73  0.040 / 0.070