Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 1 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/29/2022   22:56:03   (   0.03,-137.22) (  -0.16,-138.13)  103.74                80
 01/30/2022   22:40:20   (   0.03,-137.22) (   0.85,-133.69)  403.06                80
 02/01/2022   11:02:42   (  -0.03,-137.20) (   0.39,-139.07)  213.06                80
 02/02/2022   10:41:39   (  -0.03,-137.20) (  -0.63,-134.63)  293.55                80
 02/03/2022   23:04:07   (   0.03,-137.20) (  -0.63,-140.04)  324.64                80
 02/04/2022   22:48:25   (   0.03,-137.19) (   0.39,-135.60)  181.94                80
 02/06/2022   11:10:46   (  -0.02,-137.18) (   0.85,-140.99)  434.29                80
 02/07/2022   10:49:44   (  -0.02,-137.17) (  -0.17,-136.54)   71.94                80
 02/09/2022   22:53:50   (   0.01,-137.15) (  -0.06,-137.51)   41.17                80
 02/10/2022   22:38:06   (  -0.00,-137.14) (   0.91,-133.06)  464.90                80