Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2022   10:59:27   (  -0.03,-137.20) (   0.09,-137.83)   70.64                80
 04/03/2022   10:38:23   (  -0.03,-137.20) (  -0.91,-133.38)  436.42                80
 04/04/2022   23:03:32   (   0.03,-137.19) (  -0.31,-138.80)  182.56                80
 04/05/2022   22:42:29   (   0.03,-137.18) (   0.69,-134.35)  324.09                80
 04/07/2022   11:07:28   (  -0.03,-137.17) (   0.53,-139.73)  290.87                80
 04/08/2022   10:46:25   (  -0.02,-137.16) (  -0.47,-135.27)  215.36                80
 04/09/2022   23:08:53   (   0.02,-137.14) (  -0.80,-140.68)  404.90                80
 04/10/2022   22:53:10   (   0.01,-137.12) (   0.20,-136.23)  101.07                80
 04/13/2022   10:57:05   (  -0.01,-137.08) (   0.00,-137.16)    9.21                80
 04/14/2022   10:36:02   (  -0.01,-137.06) (  -1.00,-132.71)  496.28                80