Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/09/2021   06:47:29   (   0.01, -75.19) (   0.17, -75.91)   82.52                80
 11/10/2021   06:25:50   (   0.00, -75.19) (  -0.87, -71.32)  440.74                80
 11/11/2021   18:50:05   (  -0.00, -75.19) (  -0.29, -76.53)  152.14                80
 11/12/2021   18:28:27   (   0.00, -75.19) (   0.75, -71.93)  371.92                80
 11/14/2021   06:52:32   (   0.00, -75.20) (   0.43, -77.10)  215.56                80
 11/15/2021   06:30:54   (   0.00, -75.21) (  -0.61, -72.50)  309.07                80
 11/16/2021   18:55:08   (  -0.01, -75.23) (  -0.58, -77.70)  281.87                80
 11/17/2021   18:33:30   (  -0.01, -75.24) (   0.47, -73.11)  243.29                80
 11/19/2021   06:57:35   (   0.02, -75.26) (   0.70, -78.27)  342.80                80
 11/20/2021   06:35:56   (   0.02, -75.28) (  -0.36, -73.68)  182.43                80
 11/21/2021   19:00:11   (  -0.03, -75.30) (  -0.81, -78.88)  407.86                80