Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 12 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/27/2021   07:00:39   (  -0.04, -75.18) (   0.76, -78.77)  408.79                80
 12/28/2021   06:39:36   (  -0.04, -75.19) (  -0.24, -74.32)   98.75                80
 12/30/2021   18:43:44   (   0.03, -75.21) (   0.01, -75.30)   10.72                80
 12/31/2021   18:28:02   (   0.02, -75.22) (   1.02, -70.86)  497.14                80
 01/02/2022   06:50:23   (  -0.01, -75.22) (   0.19, -76.25)  116.86                80
 01/03/2022   06:29:19   (  -0.01, -75.23) (  -0.75, -71.79)  391.05                80
 01/04/2022   18:51:50   (   0.01, -75.25) (  -0.46, -77.22)  225.54                80
 01/05/2022   18:36:07   (   0.00, -75.26) (   0.55, -72.78)  282.95                80
 01/07/2022   06:58:30   (  -0.01, -75.28) (   0.61, -78.18)  329.54                80
 01/08/2022   06:37:27   (  -0.01, -75.30) (  -0.39, -73.73)  179.39                80
 01/09/2022   18:59:56   (   0.01, -75.33) (  -0.86, -79.15)  435.61                80