Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 13.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/13/2022   10:11:24   (  -0.05,-128.34) (  -0.44,-126.52)  207.10                80
 01/14/2022   22:31:14   (   0.05,-128.35) (  -0.74,-131.95)  410.56                80
 01/15/2022   22:15:31   (   0.04,-128.35) (   0.21,-127.49)   97.22                80
 01/18/2022   10:19:31   (  -0.04,-128.36) (  -0.05,-128.45)   10.10                80
 01/19/2022   10:01:07   (  -0.04,-128.36) (  -1.00,-123.99)  497.52                80
 01/20/2022   22:20:57   (   0.04,-128.36) (  -0.23,-129.42)  121.24                80
 01/21/2022   22:05:14   (   0.04,-128.36) (   0.79,-124.97)  385.83                80
 01/23/2022   10:24:56   (  -0.05,-128.36) (   0.39,-130.37)  229.09                80
 01/24/2022   10:09:14   (  -0.04,-128.35) (  -0.62,-125.93)  277.58                80
 01/25/2022   22:29:02   (   0.04,-128.34) (  -0.65,-131.34)  342.12                80
 01/26/2022   22:13:20   (   0.04,-128.33) (   0.37,-126.89)  164.21                80