Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 8 5.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/05/2022   10:55:45   (   0.07,-137.32) (  -0.12,-136.45)   98.30                80
 08/07/2022   23:02:27   (  -0.06,-137.30) (  -0.11,-137.40)   12.67                80
 08/08/2022   22:44:02   (  -0.06,-137.29) (   0.92,-132.95)  494.72                80
 08/10/2022   11:06:20   (   0.05,-137.28) (   0.27,-138.32)  118.75                80
 08/11/2022   10:45:14   (   0.05,-137.27) (  -0.70,-133.86)  388.19                80
 08/12/2022   23:07:41   (  -0.05,-137.24) (  -0.50,-139.27)  231.36                80
 08/13/2022   22:51:56   (  -0.04,-137.23) (   0.48,-134.81)  275.63                80
 08/15/2022   11:11:33   (   0.04,-137.22) (   0.72,-140.18)  338.02                80
 08/16/2022   10:55:49   (   0.04,-137.20) (  -0.32,-135.73)  168.83                80
 08/17/2022   23:15:35   (  -0.04,-137.18) (  -0.94,-141.13)  451.24                80
 08/18/2022   22:59:51   (  -0.04,-137.16) (   0.10,-136.68)   55.28                80