Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 11.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/13/2022   11:07:58   (   0.01,-137.31) (   0.06,-137.44)   15.52                80
 12/14/2022   10:47:00   (   0.00,-137.30) (  -0.98,-133.01)  489.44                80
 12/15/2022   23:12:15   (  -0.00,-137.28) (  -0.27,-138.45)  133.08                80
 12/16/2022   22:51:15   (   0.00,-137.28) (   0.72,-134.01)  371.64                80
 12/18/2022   11:16:22   (   0.00,-137.27) (   0.49,-139.42)  245.27                80
 12/19/2022   10:55:22   (   0.00,-137.25) (  -0.50,-134.98)  258.95                80
 12/20/2022   23:20:37   (  -0.01,-137.22) (  -0.74,-140.42)  364.95                80
 12/21/2022   23:02:18   (  -0.01,-137.20) (   0.25,-135.98)  138.72                80
 12/23/2022   11:24:44   (   0.02,-137.17) (   0.95,-141.38)  479.94                80
 12/24/2022   11:03:45   (   0.02,-137.14) (  -0.04,-136.95)   22.99                80