Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 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)
 07/25/2019   06:26:40   (  -0.01, -75.19) (  -0.14, -74.71)   55.36                80
 07/27/2019   18:29:25   (   0.01, -75.20) (  -0.03, -75.38)   20.56                80
 07/30/2019   06:34:42   (  -0.01, -75.20) (   0.15, -76.02)   93.16                80
 07/31/2019   06:13:07   (  -0.01, -75.20) (  -0.84, -71.44)  428.10                80
 08/01/2019   18:34:47   (   0.02, -75.21) (  -0.31, -76.69)  168.40                80
 08/02/2019   18:18:32   (   0.01, -75.21) (   0.68, -72.11)  353.33                80
 08/04/2019   06:37:25   (  -0.01, -75.22) (   0.44, -77.33)  239.32                80
 08/05/2019   06:21:10   (  -0.01, -75.23) (  -0.55, -72.75)  282.84                80
 08/06/2019   18:40:10   (   0.01, -75.25) (  -0.59, -77.99)  312.40                80
 08/07/2019   18:23:54   (   0.01, -75.26) (   0.41, -73.42)  210.16                80