Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2021 11 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)
 11/14/2021   06:52:32   (   0.01, -75.20) (   0.46, -77.09)  216.50                80
 11/15/2021   06:30:54   (   0.02, -75.20) (  -0.57, -72.50)  307.87                80
 11/16/2021   18:52:29   (  -0.02, -75.22) (  -0.60, -77.70)  283.59                80
 11/17/2021   18:36:11   (  -0.02, -75.23) (   0.44, -73.11)  241.29                80
 11/19/2021   06:57:37   (   0.03, -75.25) (   0.70, -78.28)  345.77                80
 11/20/2021   06:35:59   (   0.02, -75.26) (  -0.33, -73.69)  179.04                80
 11/21/2021   18:57:34   (  -0.03, -75.28) (  -0.82, -78.89)  411.93                80
 11/22/2021   18:38:35   (  -0.02, -75.29) (   0.22, -74.30)  113.20                80
 11/24/2021   07:02:42   (   0.03, -75.31) (   0.93, -79.47)  473.13                80
 11/25/2021   06:41:03   (   0.02, -75.33) (  -0.10, -74.88)   52.12                80