Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 25.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 10/25/2019   18:28:40   (  -0.00, -75.20) (   0.11, -74.61)   66.91                80
 10/28/2019   06:31:16   (  -0.00, -75.21) (   0.03, -75.24)    4.78                80
 10/30/2019   18:31:21   (  -0.00, -75.23) (  -0.18, -75.90)   77.17                80
 10/31/2019   18:15:06   (  -0.01, -75.24) (   0.89, -71.34)  445.33                80
 11/02/2019   06:36:37   (   0.01, -75.26) (   0.33, -76.53)  146.35                80
 11/03/2019   06:15:02   (   0.02, -75.27) (  -0.74, -71.97)  376.42                80
 11/04/2019   18:36:41   (  -0.02, -75.30) (  -0.46, -77.20)  217.50                80
 11/05/2019   18:20:26   (  -0.02, -75.31) (   0.56, -72.62)  305.75                80
 11/07/2019   06:41:58   (   0.02, -75.34) (   0.56, -77.84)  284.63                80