Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 6.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/06/2021   18:42:21   (  -0.02, -75.20) (  -0.06, -75.34)   15.74                80
 11/09/2021   06:47:29   (   0.01, -75.19) (   0.16, -75.92)   82.08                80
 11/10/2021   06:25:50   (   0.01, -75.19) (  -0.87, -71.32)  441.29                80
 11/11/2021   18:50:05   (  -0.01, -75.20) (  -0.30, -76.53)  151.42                80
 11/12/2021   18:28:27   (  -0.01, -75.20) (   0.73, -71.93)  372.68                80
 11/14/2021   06:52:32   (   0.01, -75.21) (   0.46, -77.09)  214.82                80
 11/15/2021   06:30:55   (   0.01, -75.22) (  -0.63, -72.51)  309.83                80
 11/16/2021   18:55:09   (  -0.02, -75.24) (  -0.59, -77.70)  281.09                80
 11/17/2021   18:33:31   (  -0.02, -75.26) (   0.45, -73.11)  244.03                80
 11/19/2021   06:57:37   (   0.03, -75.28) (   0.69, -78.28)  342.20                80