Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2022 12 8.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2022   06:56:32   (  -0.01, -75.19) (   0.03, -75.29)   11.54                80
 12/11/2022   06:40:53   (  -0.00, -75.20) (  -1.01, -70.86)  494.72                80
 12/12/2022   19:00:49   (   0.01, -75.20) (  -0.24, -76.30)  124.95                80
 12/13/2022   18:45:09   (   0.01, -75.21) (   0.73, -71.86)  381.72                80
 12/15/2022   07:07:35   (  -0.01, -75.23) (   0.48, -77.26)  232.87                80
 12/16/2022   06:46:37   (  -0.01, -75.24) (  -0.56, -72.84)  274.11                80
 12/17/2022   19:09:12   (   0.01, -75.25) (  -0.68, -78.27)  344.57                80
 12/18/2022   18:53:33   (   0.01, -75.27) (   0.30, -73.83)  162.87                80
 12/20/2022   07:15:59   (  -0.01, -75.29) (   0.90, -79.24)  450.50                80
 12/21/2022   06:55:01   (  -0.00, -75.31) (  -0.14, -74.81)   56.89                80