Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 12 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/12/2020   06:45:41   (   0.01, -75.15) (   0.58, -77.71)  292.68                80
 12/13/2020   06:24:03   (   0.01, -75.14) (  -0.42, -73.12)  229.44                80
 12/14/2020   18:45:40   (  -0.01, -75.14) (  -0.73, -78.34)  364.92                80
 12/15/2020   18:29:24   (  -0.00, -75.15) (   0.32, -73.77)  157.55                80
 12/17/2020   06:50:53   (  -0.00, -75.14) (   0.85, -78.95)  434.13                80
 12/18/2020   06:29:17   (  -0.00, -75.14) (  -0.20, -74.37)   88.58                80
 12/20/2020   18:34:37   (   0.01, -75.17) (   0.06, -75.00)   18.82                80
 12/23/2020   06:37:09   (  -0.02, -75.20) (   0.06, -75.61)   47.04                80
 12/24/2020   06:15:32   (  -0.02, -75.21) (  -0.94, -71.02)  476.92                80