Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 11 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 11/21/2020   06:43:45   (   0.01, -75.15) (   0.49, -77.35)  250.02                80
 11/22/2020   06:22:09   (   0.01, -75.15) (  -0.55, -72.77)  272.45                80
 11/23/2020   18:43:46   (  -0.01, -75.17) (  -0.63, -77.99)  321.48                80
 11/24/2020   18:27:30   (  -0.01, -75.17) (   0.41, -73.41)  201.68                80
 11/26/2020   06:48:59   (   0.00, -75.18) (   0.75, -78.60)  388.82                80
 11/27/2020   06:27:23   (   0.01, -75.19) (  -0.29, -74.02)  134.55                80
 11/28/2020   18:49:00   (  -0.00, -75.21) (  -0.89, -79.23)  458.45                80
 11/29/2020   18:32:42   (  -0.01, -75.22) (   0.10, -74.64)   65.26                80
 12/02/2020   06:32:35   (   0.00, -75.25) (   0.03, -75.25)    3.09                80
 12/04/2020   18:35:16   (   0.01, -75.28) (  -0.15, -75.89)   69.87                80