Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 5 21.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 05/23/2022   10:20:28   (   0.05,-127.73) (   0.02,-127.64)   10.25                80
 05/25/2022   22:21:50   (  -0.04,-127.82) (  -0.24,-128.60)   89.06                80
 05/26/2022   22:06:07   (  -0.05,-127.86) (   0.80,-124.15)  423.48                80
 05/28/2022   10:25:46   (   0.03,-127.93) (   0.41,-129.53)  183.32                80
 05/29/2022   10:10:03   (   0.04,-127.96) (  -0.64,-125.09)  328.59                80
 05/30/2022   22:29:50   (  -0.01,-128.00) (  -0.55,-130.50)  284.57                80
 05/31/2022   22:14:06   (  -0.02,-128.04) (   0.45,-126.05)  227.26                80
 06/02/2022   10:33:45   (  -0.01,-128.10) (   0.77,-131.43)  380.17                80
 06/03/2022   10:18:00   (   0.00,-128.13) (  -0.23,-126.97)  131.19                80