Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 12 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/16/2021   07:00:07   (  -0.03, -75.22) (   0.92, -79.36)  472.54                80
 12/17/2021   06:44:24   (  -0.02, -75.21) (  -0.07, -74.91)   33.97                80
 12/19/2021   18:45:53   (   0.01, -75.20) (  -0.13, -75.90)   79.28                80
 12/20/2021   18:30:11   (   0.00, -75.20) (   0.87, -71.45)  427.60                80
 12/22/2021   06:52:31   (  -0.01, -75.20) (   0.39, -76.83)  186.85                80
 12/23/2021   06:31:29   (  -0.00, -75.20) (  -0.61, -72.39)  320.19                80
 12/24/2021   18:54:00   (   0.01, -75.20) (  -0.57, -77.83)  298.79                80
 12/25/2021   18:38:17   (   0.01, -75.21) (   0.43, -73.38)  208.70                80
 12/27/2021   07:00:39   (  -0.01, -75.22) (   0.78, -78.77)  404.46                80
 12/28/2021   06:39:36   (  -0.01, -75.23) (  -0.22, -74.33)  103.21                80