Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 3 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/13/2021   06:17:35   (  -0.04, -75.19) (  -0.98, -71.09)  468.69                80
 03/14/2021   18:39:13   (   0.04, -75.20) (  -0.18, -76.30)  124.96                80
 03/15/2021   18:22:55   (   0.04, -75.21) (   0.84, -71.72)  398.56                80
 03/17/2021   06:44:22   (  -0.04, -75.22) (   0.36, -76.89)  190.65                80
 03/18/2021   06:22:46   (  -0.04, -75.22) (  -0.71, -72.31)  332.82                80
 03/19/2021   18:44:22   (   0.03, -75.24) (  -0.49, -77.52)  260.33                80
 03/20/2021   18:28:05   (   0.03, -75.25) (   0.53, -72.93)  263.60                80
 03/22/2021   06:49:33   (  -0.03, -75.26) (   0.62, -78.11)  324.67                80
 03/23/2021   06:27:56   (  -0.02, -75.27) (  -0.39, -73.52)  199.23                80
 03/24/2021   18:49:33   (   0.01, -75.29) (  -0.73, -78.74)  393.45                80
 03/25/2021   18:33:15   (   0.01, -75.30) (   0.29, -74.16)  131.06                80