Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 10 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/30/2021   06:34:40   (  -0.01, -75.23) (  -0.40, -73.56)  191.39                80
 10/31/2021   18:56:15   (   0.01, -75.26) (  -0.79, -78.76)  398.93                80
 11/01/2021   18:39:57   (   0.01, -75.28) (   0.23, -74.16)  126.34                80
 11/03/2021   07:01:23   (  -0.00, -75.30) (   0.90, -79.33)  460.30                80
 11/04/2021   06:39:45   (   0.00, -75.31) (  -0.12, -74.74)   65.08                80
 11/06/2021   18:45:02   (  -0.02, -75.36) (  -0.03, -75.35)    2.00                80
 11/09/2021   06:47:29   (   0.02, -75.40) (   0.14, -75.93)   59.88                80
 11/10/2021   06:25:51   (   0.01, -75.42) (  -0.89, -71.33)  465.62                80
 11/11/2021   18:50:06   (  -0.02, -75.46) (  -0.28, -76.54)  123.30                80
 11/12/2021   18:28:28   (  -0.01, -75.49) (   0.76, -71.95)  403.09                80