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)
 08/22/2019   18:37:22   (   0.03, -75.25) (  -0.44, -77.33)  236.67                80
 08/23/2019   18:21:07   (   0.03, -75.28) (   0.61, -72.76)  286.82                80
 08/25/2019   06:42:40   (  -0.04, -75.29) (   0.54, -77.97)  305.13                80
 08/26/2019   06:21:04   (  -0.04, -75.31) (  -0.45, -73.40)  218.30                80
 08/27/2019   18:42:44   (   0.05, -75.37) (  -0.71, -78.64)  373.29                80
 08/28/2019   18:26:30   (   0.05, -75.39) (   0.35, -74.07)  150.50                80
 08/30/2019   06:48:02   (  -0.05, -75.42) (   0.80, -79.29)  440.43                80
 08/31/2019   06:26:27   (  -0.05, -75.45) (  -0.20, -74.71)   83.74                80
 09/02/2019   18:31:53   (   0.05, -75.54) (   0.09, -75.39)   17.96                80