Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 12 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/31/2019   06:16:57   (   0.02, -75.20) (  -0.60, -72.38)  320.28                80
 01/01/2020   18:41:16   (  -0.02, -75.21) (  -0.57, -77.62)  274.74                80
 01/02/2020   18:19:40   (  -0.02, -75.22) (   0.45, -73.04)  247.52                80
 01/04/2020   06:43:52   (   0.03, -75.23) (   0.71, -78.24)  343.94                80
 01/05/2020   06:22:16   (   0.02, -75.24) (  -0.32, -73.67)  178.56                80
 01/06/2020   18:46:36   (  -0.03, -75.26) (  -0.86, -78.90)  415.64                80
 01/07/2020   18:25:00   (  -0.03, -75.27) (   0.17, -74.33)  107.04                80
 01/09/2020   06:49:11   (   0.04, -75.28) (   0.99, -79.53)  483.81                80
 01/10/2020   06:27:36   (   0.04, -75.30) (  -0.04, -74.95)   38.86                80
 01/12/2020   18:33:00   (  -0.04, -75.33) (  -0.12, -75.61)   32.20                80
 01/13/2020   18:11:24   (  -0.03, -75.35) (   0.91, -71.04)  490.87                80