Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 9 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 09/23/2019   18:31:43   (  -0.00, -75.21) (  -0.19, -75.98)   88.31                80
 09/24/2019   18:15:28   (  -0.00, -75.21) (   0.87, -71.42)  433.31                80
 09/26/2019   06:36:59   (   0.01, -75.21) (   0.35, -76.61)  160.21                80
 09/27/2019   06:15:24   (   0.01, -75.22) (  -0.71, -72.04)  361.68                80
 09/28/2019   18:37:04   (  -0.01, -75.24) (  -0.48, -77.28)  232.98                80
 09/29/2019   18:20:50   (  -0.01, -75.25) (   0.59, -72.72)  289.41                80
 10/01/2019   06:42:20   (   0.01, -75.26) (   0.63, -77.91)  302.76                80
 10/02/2019   06:20:46   (   0.01, -75.27) (  -0.43, -73.35)  219.84                80
 10/03/2019   18:42:26   (  -0.01, -75.31) (  -0.76, -78.59)  373.94                80
 10/04/2019   18:26:11   (  -0.01, -75.32) (   0.25, -74.01)  149.14                80