Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 6 12.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/12/2022   10:50:11   (   0.02,-137.20) (  -0.33,-135.61)  181.02                80
 06/13/2022   23:15:17   (  -0.02,-137.19) (  -0.89,-141.02)  436.61                80
 06/14/2022   22:54:13   (  -0.02,-137.18) (   0.11,-136.56)   70.62                80
 06/17/2022   11:00:48   (   0.01,-137.17) (   0.09,-137.48)   36.19                80
 06/18/2022   10:39:43   (   0.01,-137.16) (  -0.91,-133.03)  470.73                80
 06/19/2022   23:04:50   (  -0.02,-137.14) (  -0.30,-138.44)  147.83                80
 06/20/2022   22:43:45   (  -0.01,-137.13) (   0.70,-133.98)  359.16                80
 06/22/2022   11:08:44   (   0.02,-137.12) (   0.50,-139.36)  254.85                80
 06/23/2022   10:47:40   (   0.01,-137.11) (  -0.51,-134.91)  251.84                80
 06/24/2022   23:12:45   (  -0.01,-137.08) (  -0.76,-140.30)  367.71                80
 06/25/2022   22:51:41   (  -0.01,-137.07) (   0.25,-135.85)  138.57                80