Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 8 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 08/18/2022   22:59:50   (  -0.07,-137.30) (   0.09,-136.67)   72.01                80
 08/21/2022   11:03:42   (   0.06,-137.28) (   0.11,-137.58)   34.48                80
 08/22/2022   10:42:36   (   0.06,-137.27) (  -0.86,-133.12)  472.49                80
 08/23/2022   23:05:04   (  -0.05,-137.24) (  -0.32,-138.54)  146.70                80
 08/24/2022   22:49:18   (  -0.05,-137.23) (   0.66,-134.07)  359.99                80
 08/26/2022   11:08:55   (   0.04,-137.21) (   0.53,-139.45)  254.91                80
 08/27/2022   10:53:10   (   0.03,-137.19) (  -0.45,-134.98)  251.51                80
 08/28/2022   23:12:56   (  -0.03,-137.16) (  -0.78,-140.39)  368.45                80
 08/29/2022   22:57:12   (  -0.03,-137.14) (   0.26,-135.94)  137.87                80
 08/31/2022   11:16:48   (   0.03,-137.11) (   0.99,-141.30)  477.80                80