Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 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)
 08/21/2019   06:15:41   (  -0.04, -75.21) (  -0.71, -72.08)  355.69                80
 08/22/2019   18:37:22   (   0.04, -75.26) (  -0.45, -77.33)  236.02                80
 08/23/2019   18:21:07   (   0.04, -75.29) (   0.61, -72.76)  287.55                80
 08/25/2019   06:42:40   (  -0.05, -75.30) (   0.55, -77.97)  304.18                80
 08/26/2019   06:21:05   (  -0.05, -75.33) (  -0.50, -73.41)  219.33                80
 08/27/2019   18:42:45   (   0.06, -75.38) (  -0.65, -78.65)  372.38                80
 08/28/2019   18:26:30   (   0.06, -75.41) (   0.34, -74.07)  151.48                80
 08/30/2019   06:48:02   (  -0.06, -75.43) (   0.81, -79.28)  439.26                80
 08/31/2019   06:26:28   (  -0.06, -75.46) (  -0.24, -74.72)   84.96                80
 09/02/2019   18:31:53   (   0.06, -75.56) (   0.08, -75.38)   19.29                80