Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/24/2019   06:48:15   (  -0.01, -75.19) (   0.88, -79.29)  465.72                80
 07/25/2019   06:26:39   (  -0.01, -75.19) (  -0.11, -74.71)   55.28                80
 07/27/2019   18:29:25   (   0.01, -75.20) (   0.00, -75.38)   20.89                80
 07/30/2019   06:34:42   (  -0.02, -75.20) (   0.19, -76.01)   93.30                80
 07/31/2019   06:15:48   (  -0.02, -75.20) (  -0.86, -71.45)  427.97                80
 08/01/2019   18:34:48   (   0.02, -75.21) (  -0.29, -76.69)  168.59                80
 08/02/2019   18:18:32   (   0.02, -75.21) (   0.70, -72.11)  353.14                80
 08/04/2019   06:37:25   (  -0.02, -75.22) (   0.48, -77.32)  239.54                80
 08/05/2019   06:21:10   (  -0.01, -75.23) (  -0.57, -72.75)  282.61                80
 08/06/2019   18:40:10   (   0.02, -75.25) (  -0.57, -78.00)  312.68                80