Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 8 4.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/04/2019   06:37:25   (  -0.03, -75.20) (   0.43, -77.33)  242.18                80
 08/05/2019   06:21:10   (  -0.03, -75.19) (  -0.56, -72.75)  278.00                80
 08/06/2019   18:40:10   (   0.03, -75.19) (  -0.59, -77.99)  319.55                80
 08/07/2019   18:23:55   (   0.03, -75.18) (   0.41, -73.41)  201.00                80
 08/09/2019   06:42:48   (  -0.04, -75.17) (   0.71, -78.63)  394.25                80
 08/10/2019   06:26:32   (  -0.04, -75.17) (  -0.28, -74.06)  126.51                80
 08/11/2019   18:45:33   (   0.04, -75.17) (  -0.87, -79.30)  470.24                80
 08/12/2019   18:29:17   (   0.04, -75.17) (   0.12, -74.72)   50.95                80
 08/15/2019   06:29:15   (  -0.05, -75.18) (   0.01, -75.36)   21.80                80
 08/17/2019   18:32:01   (   0.06, -75.20) (  -0.11, -76.04)   95.12                80