Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 10 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)
 10/30/2019   18:34:01   (   0.00, -75.21) (  -0.18, -75.90)   80.02                80
 10/31/2019   18:15:06   (   0.00, -75.21) (   0.89, -71.34)  441.86                80
 11/02/2019   06:36:38   (  -0.00, -75.22) (   0.27, -76.54)  150.26                80
 11/03/2019   06:15:02   (   0.00, -75.23) (  -0.74, -71.97)  371.94                80
 11/04/2019   18:36:42   (  -0.00, -75.25) (  -0.41, -77.21)  223.22                80
 11/05/2019   18:20:27   (  -0.00, -75.26) (   0.60, -72.63)  299.51                80
 11/07/2019   06:41:58   (   0.00, -75.28) (   0.57, -77.84)  291.27                80
 11/08/2019   06:20:23   (   0.00, -75.30) (  -0.45, -73.26)  231.81                80
 11/09/2019   18:42:03   (  -0.00, -75.32) (  -0.69, -78.51)  361.99                80
 11/10/2019   18:25:48   (  -0.01, -75.34) (   0.33, -73.93)  161.53                80