Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 5 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)
 05/03/2021   06:52:56   (  -0.02, -75.20) (   0.74, -78.66)  393.85                80
 05/04/2021   06:31:19   (  -0.02, -75.20) (  -0.29, -74.07)  129.61                80
 05/05/2021   18:52:54   (   0.01, -75.21) (  -0.92, -79.27)  462.98                80
 05/06/2021   18:36:37   (   0.01, -75.23) (   0.11, -74.68)   61.35                80
 05/09/2021   06:39:08   (  -0.01, -75.26) (   0.02, -75.28)    3.41                80
 05/11/2021   18:39:06   (   0.01, -75.30) (  -0.14, -75.90)   68.76                80
 05/12/2021   18:22:49   (   0.01, -75.32) (   0.89, -71.31)  456.25                80
 05/14/2021   06:44:17   (  -0.01, -75.35) (   0.26, -76.49)  130.35                80
 05/15/2021   06:22:40   (  -0.01, -75.37) (  -0.77, -71.91)  394.58                80