Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 1 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)
 01/02/2022   22:52:19   (   0.01,-137.22) (  -0.05,-137.41)   22.41                80
 01/03/2022   22:36:36   (   0.01,-137.22) (   0.96,-132.97)  484.68                80
 01/05/2022   10:56:17   (  -0.01,-137.22) (   0.25,-138.36)  129.96                80
 01/06/2022   10:40:35   (  -0.02,-137.22) (  -0.75,-133.92)  376.74                80
 01/07/2022   23:00:25   (   0.02,-137.22) (  -0.45,-139.35)  242.67                80
 01/08/2022   22:44:43   (   0.02,-137.21) (   0.56,-134.90)  264.12                80
 01/10/2022   11:04:24   (  -0.02,-137.21) (   0.66,-140.29)  350.74                80
 01/11/2022   10:48:41   (  -0.01,-137.21) (  -0.29,-135.83)  155.84                80
 01/12/2022   23:08:31   (   0.00,-137.19) (  -0.89,-141.27)  464.00                80
 01/13/2022   22:52:47   (  -0.01,-137.18) (   0.07,-136.81)   42.23                80