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)
 12/30/2019   06:38:33   (   0.02, -75.19) (   0.40, -76.97)  201.57                80
 12/31/2019   06:16:57   (   0.02, -75.20) (  -0.63, -72.39)  320.24                80
 01/01/2020   18:41:16   (  -0.02, -75.21) (  -0.54, -77.62)  274.81                80
 01/02/2020   18:19:41   (  -0.02, -75.22) (   0.48, -73.05)  247.45                80
 01/04/2020   06:43:52   (   0.02, -75.23) (   0.68, -78.25)  343.98                80
 01/05/2020   06:22:17   (   0.02, -75.24) (  -0.34, -73.68)  178.54                80
 01/06/2020   18:46:36   (  -0.03, -75.26) (  -0.83, -78.91)  415.67                80
 01/07/2020   18:25:01   (  -0.03, -75.27) (   0.19, -74.33)  107.00                80
 01/09/2020   06:49:12   (   0.04, -75.29) (   0.97, -79.54)  483.83                80
 01/10/2020   06:27:36   (   0.03, -75.30) (  -0.06, -74.96)   38.90                80
 01/12/2020   18:33:00   (  -0.04, -75.33) (  -0.10, -75.62)   32.19                80