Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 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)
 12/29/2022   11:14:48   (   0.00,-137.34) (   0.34,-138.92)  179.59                80
 12/30/2022   10:53:49   (   0.01,-137.34) (  -0.65,-134.48)  326.40                80
 12/31/2022   23:16:24   (  -0.01,-137.33) (  -0.57,-139.92)  294.24                80
 01/01/2023   23:00:44   (  -0.01,-137.33) (   0.42,-135.48)  211.46                80
 01/03/2023   11:23:10   (   0.01,-137.33) (   0.81,-140.88)  404.73                80
 01/04/2023   11:02:10   (   0.01,-137.32) (  -0.18,-136.44)  100.48                80
 01/06/2023   23:09:05   (  -0.02,-137.29) (  -0.08,-137.43)   16.80                80
 01/07/2023   22:50:46   (  -0.02,-137.28) (   0.92,-132.99)  488.27                80
 01/09/2023   11:13:12   (   0.03,-137.26) (   0.26,-138.40)  129.19                80
 01/10/2023   10:52:12   (   0.03,-137.25) (  -0.74,-133.96)  375.27                80
 01/11/2023   23:17:27   (  -0.03,-137.22) (  -0.51,-139.39)  247.46                80