Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/03/2021   07:01:23   (  -0.00, -75.26) (   0.90, -79.33)  464.46                80
 11/04/2021   06:39:45   (   0.00, -75.26) (  -0.12, -74.74)   59.41                80
 11/06/2021   18:42:21   (  -0.00, -75.27) (  -0.03, -75.35)    9.15                80
 11/09/2021   06:47:29   (   0.02, -75.28) (   0.14, -75.93)   73.08                80
 11/10/2021   06:25:51   (   0.02, -75.29) (  -0.89, -71.33)  451.16                80
 11/11/2021   18:50:06   (  -0.02, -75.30) (  -0.28, -76.54)  140.42                80
 11/12/2021   18:28:28   (  -0.01, -75.32) (   0.75, -71.94)  384.47                80
 11/14/2021   06:52:34   (   0.02, -75.34) (   0.40, -77.11)  202.01                80
 11/15/2021   06:30:55   (   0.02, -75.35) (  -0.63, -72.52)  323.43                80
 11/16/2021   18:55:10   (  -0.03, -75.38) (  -0.58, -77.71)  266.33                80