Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/20/2022   22:39:25   (   0.05,-137.20) (   0.98,-133.09)  468.84                80
 03/22/2022   11:01:45   (  -0.04,-137.20) (   0.27,-138.47)  145.24                80
 03/23/2022   10:40:42   (  -0.04,-137.19) (  -0.78,-134.03)  361.45                80
 03/24/2022   23:03:10   (   0.04,-137.18) (  -0.50,-139.44)  258.31                80
 03/25/2022   22:47:28   (   0.04,-137.17) (   0.55,-135.00)  248.00                80
 03/27/2022   11:09:47   (  -0.03,-137.15) (   0.69,-140.37)  367.18                80
 03/28/2022   10:48:44   (  -0.02,-137.14) (  -0.31,-135.92)  138.90                80
 03/29/2022   23:11:13   (   0.02,-137.11) (  -0.91,-141.34)  481.53                80
 03/30/2022   22:52:50   (   0.02,-137.10) (   0.08,-136.89)   24.58                80
 04/02/2022   10:59:25   (  -0.02,-137.07) (   0.15,-137.82)   85.20                80