Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/15/2022   23:09:35   (  -0.00,-137.28) (  -0.24,-138.46)  132.94                80
 12/16/2022   22:51:16   (   0.00,-137.28) (   0.74,-134.02)  371.80                80
 12/18/2022   11:16:22   (   0.00,-137.27) (   0.46,-139.42)  245.11                80
 12/19/2022   10:55:23   (   0.00,-137.25) (  -0.52,-134.98)  259.13                80
 12/20/2022   23:17:58   (  -0.01,-137.22) (  -0.72,-140.42)  364.80                80
 12/21/2022   23:02:19   (  -0.01,-137.20) (   0.27,-135.98)  138.86                80
 12/23/2022   11:24:44   (   0.02,-137.17) (   0.99,-141.37)  479.77                80
 12/24/2022   11:03:45   (   0.02,-137.14) (  -0.06,-136.95)   23.29                80
 12/26/2022   23:10:41   (  -0.01,-137.06) (  -0.19,-137.95)  100.08                80
 12/27/2022   22:49:42   (  -0.01,-137.04) (   0.81,-133.51)  402.68                80