Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 2 20.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/20/2022   22:54:16   (   0.04,-137.19) (   0.08,-136.89)   34.09                80
 02/23/2022   10:58:14   (  -0.04,-137.17) (   0.10,-137.84)   75.44                80
 02/24/2022   10:37:11   (  -0.04,-137.16) (  -0.87,-133.38)  430.49                80
 02/25/2022   22:59:40   (   0.03,-137.14) (  -0.32,-138.81)  189.71                80
 02/26/2022   22:43:57   (   0.02,-137.12) (   0.65,-134.35)  315.94                80
 02/28/2022   11:06:17   (  -0.00,-137.10) (   0.61,-139.73)  300.84                80
 03/01/2022   10:45:15   (  -0.00,-137.08) (  -0.42,-135.29)  204.55                80
 03/02/2022   23:07:43   (  -0.00,-137.05) (  -0.84,-140.70)  416.43                80
 03/03/2022   22:52:00   (   0.00,-137.03) (   0.20,-136.26)   88.88                80