Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 3 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/18/2020   06:42:32   (   0.03, -75.18) (   0.60, -77.81)  299.99                80
 03/19/2020   06:20:56   (   0.04, -75.18) (  -0.38, -73.23)  221.80                80
 03/20/2020   18:42:35   (  -0.04, -75.20) (  -0.78, -78.46)  371.99                80
 03/21/2020   18:26:19   (  -0.04, -75.21) (   0.27, -73.89)  150.43                80
 03/23/2020   06:47:50   (   0.04, -75.20) (   0.93, -79.08)  442.46                80
 03/24/2020   06:26:14   (   0.04, -75.21) (  -0.12, -74.51)   80.22                80
 03/26/2020   18:31:37   (  -0.04, -75.26) (  -0.04, -75.16)   11.13                80
 03/29/2020   06:34:13   (   0.04, -75.28) (   0.14, -75.78)   57.88                80
 03/30/2020   06:12:37   (   0.04, -75.29) (  -0.90, -71.21)  465.32                80
 03/31/2020   18:34:16   (  -0.03, -75.33) (  -0.29, -76.44)  126.80                80