Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 12 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/23/2022   11:22:05   (   0.01,-137.34) (   0.92,-141.38)  461.03                80
 12/24/2022   11:03:45   (   0.01,-137.34) (  -0.08,-136.95)   44.51                80
 12/26/2022   23:10:41   (  -0.02,-137.32) (  -0.16,-137.95)   71.29                80
 12/27/2022   22:49:41   (  -0.02,-137.32) (   0.83,-133.51)  433.93                80
 12/29/2022   11:14:47   (   0.02,-137.31) (   0.40,-138.90)  182.87                80
 12/30/2022   10:53:47   (   0.02,-137.30) (  -0.59,-134.47)  322.27                80
 12/31/2022   23:19:03   (  -0.02,-137.28) (  -0.62,-139.91)  299.27                80
 01/01/2023   22:58:03   (  -0.02,-137.27) (   0.38,-135.47)  205.57                80
 01/03/2023   11:23:08   (   0.03,-137.26) (   0.86,-140.87)  412.10                80
 01/04/2023   11:02:09   (   0.03,-137.24) (  -0.15,-136.43)   92.26                80