Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 16.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/18/2022   10:19:31   (  -0.04,-128.36) (  -0.04,-128.45)   10.12                80
 01/19/2022   10:01:07   (  -0.04,-128.36) (  -0.99,-123.99)  497.28                80
 01/20/2022   22:20:57   (   0.04,-128.36) (  -0.17,-129.43)  121.32                80
 01/21/2022   22:05:14   (   0.04,-128.36) (   0.78,-124.97)  385.72                80
 01/23/2022   10:27:36   (  -0.05,-128.35) (   0.40,-130.37)  229.40                80
 01/24/2022   10:06:34   (  -0.04,-128.35) (  -0.62,-125.92)  277.22                80
 01/25/2022   22:29:02   (   0.05,-128.34) (  -0.66,-131.34)  342.38                80
 01/26/2022   22:13:20   (   0.04,-128.33) (   0.36,-126.89)  163.92                80
 01/28/2022   10:35:41   (  -0.04,-128.32) (   0.88,-132.28)  452.27                80
 01/29/2022   10:14:38   (  -0.03,-128.30) (  -0.13,-127.83)   53.41                80