Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 7 22.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/22/2022   22:54:29   (  -0.05,-137.29) (   0.20,-136.28)  116.49                80
 07/24/2022   11:19:26   (   0.05,-137.30) (   1.03,-141.65)  495.99                80
 07/25/2022   10:58:22   (   0.05,-137.29) (  -0.00,-137.19)   12.19                80
 07/27/2022   23:05:04   (  -0.04,-137.28) (  -0.22,-138.15)   97.76                80
 07/28/2022   22:43:58   (  -0.04,-137.28) (   0.75,-133.68)  409.84                80
 07/30/2022   11:08:56   (   0.04,-137.27) (   0.46,-139.05)  203.64                80
 07/31/2022   10:47:51   (   0.04,-137.26) (  -0.58,-134.60)  303.74                80
 08/01/2022   23:10:17   (  -0.03,-137.25) (  -0.67,-140.00)  314.59                80
 08/02/2022   22:54:33   (  -0.03,-137.24) (   0.36,-135.55)  192.54                80
 08/04/2022   11:14:09   (   0.03,-137.22) (   0.89,-140.91)  421.92                80
 08/05/2022   10:58:25   (   0.03,-137.20) (  -0.14,-136.46)   84.61                80