Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/18/2022   22:05:25   (  -0.12,-128.37) (   0.78,-124.32)  462.10                80
 04/20/2022   10:27:45   (   0.11,-128.33) (   0.41,-129.70)  155.51                80
 04/21/2022   10:06:40   (   0.12,-128.32) (  -0.54,-125.24)  350.51                80
 04/22/2022   22:29:09   (  -0.11,-128.31) (  -0.65,-130.66)  268.40                80
 04/23/2022   22:13:26   (  -0.12,-128.29) (   0.37,-126.21)  237.75                80
 04/25/2022   10:33:04   (   0.11,-128.25) (   0.89,-131.58)  379.95                80
 04/26/2022   10:17:21   (   0.12,-128.24) (  -0.13,-127.13)  125.95                80
 04/27/2022   22:37:09   (  -0.11,-128.22) (  -1.10,-132.55)  493.58                80
 04/28/2022   22:21:26   (  -0.12,-128.21) (  -0.08,-128.10)   12.55                80
 05/01/2022   10:22:40   (   0.11,-128.15) (   0.32,-129.02)   99.51                80