Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 5 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)
 05/21/2020   06:27:38   (  -0.01, -75.19) (  -0.12, -74.71)   55.02                80
 05/23/2020   18:30:21   (   0.01, -75.20) (  -0.03, -75.36)   18.41                80
 05/26/2020   06:35:35   (  -0.01, -75.20) (   0.17, -75.98)   88.96                80
 05/27/2020   06:13:58   (  -0.01, -75.20) (  -0.84, -71.39)  433.03                80
 05/28/2020   18:35:37   (   0.00, -75.21) (  -0.32, -76.62)  161.78                80
 05/29/2020   18:19:22   (   0.00, -75.21) (   0.74, -72.05)  360.72                80
 05/31/2020   06:40:51   (  -0.00, -75.22) (   0.45, -77.24)  230.55                80
 06/01/2020   06:19:15   (  -0.00, -75.22) (  -0.55, -72.66)  292.18                80
 06/02/2020   18:40:54   (   0.00, -75.24) (  -0.60, -77.89)  301.81                80
 06/03/2020   18:24:39   (  -0.00, -75.25) (   0.46, -73.32)  221.40                80