Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 1 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/03/2022   22:36:36   (   0.01,-137.22) (   0.97,-132.97)  484.57                80
 01/05/2022   10:56:18   (  -0.02,-137.22) (   0.24,-138.36)  130.16                80
 01/06/2022   10:40:35   (  -0.03,-137.22) (  -0.77,-133.92)  376.49                80
 01/07/2022   23:00:25   (   0.03,-137.21) (  -0.43,-139.35)  242.91                80
 01/08/2022   22:44:43   (   0.03,-137.21) (   0.58,-134.90)  263.86                80
 01/10/2022   11:04:24   (  -0.03,-137.21) (   0.64,-140.30)  351.01                80
 01/11/2022   10:48:41   (  -0.02,-137.20) (  -0.31,-135.84)  155.48                80
 01/12/2022   23:08:30   (   0.01,-137.19) (  -0.93,-141.26)  464.40                80
 01/13/2022   22:52:48   (  -0.01,-137.18) (   0.08,-136.81)   41.98                80
 01/16/2022   10:54:06   (   0.01,-137.15) (   0.13,-137.76)   68.81                80
 01/17/2022   10:38:24   (   0.01,-137.13) (  -0.88,-133.31)  436.47                80