Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 6 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/03/2022   10:18:00   (   0.00,-128.09) (  -0.27,-126.97)  128.20                80
 06/04/2022   22:37:47   (   0.02,-128.12) (  -0.96,-132.38)  485.99                80
 06/05/2022   22:22:02   (   0.01,-128.15) (   0.04,-127.92)   25.20                80
 06/08/2022   10:23:18   (  -0.02,-128.21) (   0.11,-128.86)   73.10                80
 06/09/2022   10:07:34   (  -0.01,-128.23) (  -0.88,-124.40)  437.42                80
 06/10/2022   22:27:20   (   0.04,-128.25) (  -0.34,-129.81)  177.95                80
 06/11/2022   22:11:35   (   0.03,-128.27) (   0.66,-125.35)  332.27                80
 06/13/2022   10:31:16   (  -0.06,-128.31) (   0.48,-130.75)  278.15                80
 06/14/2022   10:15:31   (  -0.05,-128.32) (  -0.52,-126.29)  231.26                80
 06/15/2022   22:35:18   (   0.08,-128.31) (  -0.69,-131.70)  386.17                80
 06/16/2022   22:19:33   (   0.07,-128.32) (   0.31,-127.24)  123.16                80