Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 7 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/30/2019   06:32:02   (  -0.04, -75.21) (   0.15, -76.02)   92.90                80
 07/31/2019   06:15:48   (  -0.04, -75.21) (  -0.90, -71.45)  428.97                80
 08/01/2019   18:34:48   (   0.05, -75.23) (  -0.26, -76.70)  166.47                80
 08/02/2019   18:18:33   (   0.05, -75.24) (   0.74, -72.12)  355.84                80
 08/04/2019   06:37:25   (  -0.05, -75.26) (   0.44, -77.33)  236.01                80
 08/05/2019   06:21:11   (  -0.05, -75.28) (  -0.61, -72.76)  286.78                80
 08/06/2019   18:40:11   (   0.05, -75.31) (  -0.54, -78.01)  307.26                80
 08/07/2019   18:23:55   (   0.05, -75.33) (   0.45, -73.43)  215.87                80
 08/09/2019   06:45:29   (  -0.06, -75.35) (   0.67, -78.65)  374.92                80
 08/10/2019   06:23:53   (  -0.06, -75.38) (  -0.32, -74.07)  148.43                80
 08/11/2019   18:48:13   (   0.07, -75.41) (  -0.82, -79.31)  444.79                80