Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 8 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/21/2022   11:03:41   (   0.07,-137.27) (   0.16,-137.57)   34.97                80
 08/22/2022   10:42:36   (   0.07,-137.26) (  -0.87,-133.12)  471.95                80
 08/23/2022   23:05:03   (  -0.06,-137.24) (  -0.37,-138.52)  147.01                80
 08/24/2022   22:49:18   (  -0.06,-137.22) (   0.67,-134.07)  359.57                80
 08/26/2022   11:08:55   (   0.05,-137.19) (   0.57,-139.43)  255.88                80
 08/27/2022   10:53:10   (   0.05,-137.18) (  -0.47,-134.98)  250.44                80
 08/28/2022   23:12:56   (  -0.04,-137.15) (  -0.76,-140.39)  369.30                80
 08/29/2022   22:57:11   (  -0.04,-137.13) (   0.22,-135.93)  136.86                80
 08/31/2022   11:16:48   (   0.04,-137.09) (   0.97,-141.30)  479.37                80
 09/01/2022   11:01:03   (   0.04,-137.07) (  -0.02,-136.84)   26.22                80