Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 1 2.  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   22:53:39   (   0.01,-137.22) (   0.00,-137.43)   22.58                 0
 01/03/2022   22:36:36   (   0.01,-137.22) (   0.95,-132.97)  484.65                80
 01/05/2022   10:56:17   (  -0.02,-137.22) (   0.26,-138.36)  129.99                80
 01/06/2022   10:40:35   (  -0.02,-137.22) (  -0.75,-133.91)  376.71                80
 01/07/2022   23:00:25   (   0.03,-137.22) (  -0.45,-139.34)  242.74                80
 01/08/2022   22:44:43   (   0.03,-137.21) (   0.56,-134.90)  264.03                80
 01/10/2022   11:04:24   (  -0.02,-137.21) (   0.66,-140.29)  350.78                80
 01/11/2022   10:48:41   (  -0.02,-137.21) (  -0.35,-135.85)  155.79                80
 01/12/2022   23:08:31   (   0.00,-137.19) (  -0.89,-141.27)  464.07                80
 01/13/2022   22:52:47   (  -0.01,-137.18) (   0.07,-136.81)   42.19                80
 01/16/2022   10:54:06   (   0.01,-137.15) (   0.14,-137.75)   68.59                80