Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 7 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)
 07/21/2020   18:15:15   (   0.02, -75.22) (   0.97, -70.90)  492.40                80
 07/23/2020   06:34:05   (  -0.02, -75.23) (   0.18, -76.09)   98.98                80
 07/24/2020   06:17:49   (  -0.01, -75.24) (  -0.83, -71.51)  424.15                80
 07/25/2020   18:36:47   (   0.02, -75.26) (  -0.33, -76.74)  168.97                80
 07/26/2020   18:20:31   (   0.01, -75.27) (   0.74, -72.17)  354.61                80
 07/28/2020   06:39:22   (  -0.02, -75.29) (   0.42, -77.36)  235.80                80
 07/29/2020   06:23:05   (  -0.02, -75.30) (  -0.59, -72.78)  287.85                80
 07/30/2020   18:42:04   (   0.03, -75.33) (  -0.56, -78.01)  304.73                80
 07/31/2020   18:25:47   (   0.02, -75.35) (   0.45, -73.42)  219.25                80
 08/02/2020   06:44:37   (  -0.03, -75.37) (   0.71, -78.62)  370.26                80
 08/03/2020   06:28:22   (  -0.03, -75.39) (  -0.36, -74.05)  154.14                80