Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 6 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/19/2020   18:21:31   (  -0.01, -75.21) (   0.61, -72.51)  307.84                80
 06/21/2020   06:43:01   (   0.00, -75.21) (   0.56, -77.70)  283.43                80
 06/22/2020   06:21:24   (  -0.00, -75.22) (  -0.45, -73.11)  239.10                80
 06/23/2020   18:43:03   (   0.01, -75.24) (  -0.71, -78.35)  355.14                80
 06/24/2020   18:26:48   (   0.01, -75.24) (   0.36, -73.78)  167.88                80
 06/26/2020   06:48:17   (  -0.01, -75.26) (   0.82, -78.96)  422.29                80
 06/27/2020   06:26:41   (  -0.00, -75.27) (  -0.19, -74.38)  101.01                80
 06/28/2020   18:48:20   (   0.00, -75.30) (  -0.96, -79.61)  492.13                80
 06/29/2020   18:32:04   (   0.00, -75.31) (   0.05, -75.03)   31.63                80
 07/02/2020   06:34:37   (  -0.01, -75.35) (   0.06, -75.65)   33.67                80