Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2019 12 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/27/2019   18:35:56   (  -0.02, -75.20) (  -0.29, -76.33)  129.78                80
 12/28/2019   18:14:21   (  -0.01, -75.20) (   0.73, -71.76)  392.13                80
 12/30/2019   06:38:32   (   0.01, -75.21) (   0.43, -76.96)  200.24                80
 12/31/2019   06:16:56   (   0.01, -75.22) (  -0.60, -72.38)  322.13                80
 01/01/2020   18:41:16   (  -0.01, -75.24) (  -0.57, -77.62)  271.75                80
 01/02/2020   18:19:41   (  -0.01, -75.25) (   0.51, -73.06)  251.10                80
 01/04/2020   06:43:52   (   0.01, -75.27) (   0.70, -78.25)  339.77                80
 01/05/2020   06:22:16   (   0.01, -75.28) (  -0.33, -73.67)  183.33                80
 01/06/2020   18:46:35   (  -0.02, -75.32) (  -0.84, -78.90)  409.66                80
 01/07/2020   18:25:00   (  -0.02, -75.33) (   0.19, -74.33)  113.62                80
 01/09/2020   06:49:11   (   0.03, -75.35) (   0.97, -79.53)  476.63                80