Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 2 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/03/2021   06:40:50   (   0.00, -75.21) (   0.21, -76.27)  120.09                80
 02/04/2021   06:19:12   (   0.00, -75.21) (  -0.79, -71.68)  402.61                80
 02/05/2021   18:40:49   (  -0.00, -75.22) (  -0.39, -76.90)  191.60                80
 02/06/2021   18:24:33   (   0.00, -75.22) (   0.67, -72.32)  331.40                80
 02/08/2021   06:46:01   (  -0.01, -75.23) (   0.48, -77.50)  258.67                80
 02/09/2021   06:24:24   (  -0.01, -75.23) (  -0.53, -72.91)  264.40                80
 02/10/2021   18:46:01   (   0.02, -75.24) (  -0.66, -78.13)  329.28                80
 02/11/2021   18:29:45   (   0.02, -75.25) (   0.41, -73.55)  194.65                80
 02/13/2021   06:51:13   (  -0.02, -75.28) (   0.74, -78.73)  393.30                80
 02/14/2021   06:29:35   (  -0.02, -75.29) (  -0.26, -74.14)  130.97                80
 02/15/2021   18:51:13   (   0.02, -75.32) (  -0.92, -79.36)  461.34                80