Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 1 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/22/2020   18:43:38   (  -0.06, -75.20) (  -0.70, -78.16)  337.33                80
 01/23/2020   18:22:01   (  -0.06, -75.20) (   0.27, -73.57)  184.51                80
 01/25/2020   06:46:11   (   0.07, -75.20) (   0.90, -78.77)  407.96                80
 01/26/2020   06:24:36   (   0.07, -75.20) (  -0.14, -74.20)  114.26                80
 01/27/2020   18:48:56   (  -0.08, -75.23) (  -1.01, -79.44)  479.80                80
 01/28/2020   18:27:21   (  -0.07, -75.24) (   0.03, -74.86)   42.95                80
 01/31/2020   06:32:36   (   0.08, -75.26) (   0.10, -75.49)   25.11                80
 02/01/2020   06:11:00   (   0.07, -75.28) (  -0.93, -70.91)  498.16                80
 02/02/2020   18:35:19   (  -0.08, -75.31) (  -0.26, -76.14)   94.67                80
 02/03/2020   18:13:44   (  -0.08, -75.33) (   0.77, -71.57)  428.71                80