Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 12 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)
 12/30/2019   06:38:32   (   0.02, -75.19) (   0.43, -76.96)  201.66                80
 12/31/2019   06:16:57   (   0.01, -75.20) (  -0.60, -72.38)  320.16                80
 01/01/2020   18:41:16   (  -0.02, -75.21) (  -0.58, -77.62)  274.77                80
 01/02/2020   18:19:40   (  -0.01, -75.22) (   0.45, -73.04)  247.52                80
 01/04/2020   06:43:52   (   0.02, -75.23) (   0.71, -78.24)  343.94                80
 01/05/2020   06:22:16   (   0.02, -75.24) (  -0.31, -73.67)  178.62                80
 01/06/2020   18:46:35   (  -0.03, -75.26) (  -0.87, -78.90)  415.48                80
 01/07/2020   18:25:00   (  -0.03, -75.27) (   0.16, -74.33)  107.26                80
 01/09/2020   06:49:11   (   0.04, -75.29) (   1.00, -79.53)  483.62                80
 01/10/2020   06:27:36   (   0.03, -75.30) (  -0.03, -74.95)   39.12                80