Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 3 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/19/2022   22:57:49   (   0.04,-137.20) (  -0.02,-137.54)   38.26                80
 03/20/2022   22:36:45   (   0.04,-137.21) (   0.97,-133.09)  469.30                80
 03/22/2022   11:01:45   (  -0.04,-137.21) (   0.22,-138.48)  144.33                80
 03/23/2022   10:40:42   (  -0.04,-137.20) (  -0.77,-134.02)  362.55                80
 03/24/2022   23:03:11   (   0.04,-137.19) (  -0.46,-139.45)  256.97                80
 03/25/2022   22:47:28   (   0.03,-137.18) (   0.53,-134.99)  249.52                80
 03/27/2022   11:09:47   (  -0.02,-137.17) (   0.70,-140.37)  365.25                80
 03/28/2022   10:48:44   (  -0.02,-137.16) (  -0.29,-135.92)  141.04                80
 03/29/2022   23:11:13   (   0.01,-137.14) (  -0.93,-141.34)  479.14                80
 03/30/2022   22:55:29   (   0.01,-137.13) (   0.06,-136.89)   27.08                80