Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/20/2022   10:27:45   (   0.11,-128.33) (   0.42,-129.70)  155.52                80
 04/21/2022   10:06:41   (   0.12,-128.32) (  -0.60,-125.25)  350.51                80
 04/22/2022   22:29:09   (  -0.11,-128.31) (  -0.66,-130.66)  268.15                80
 04/23/2022   22:13:26   (  -0.12,-128.30) (   0.36,-126.21)  238.02                80
 04/25/2022   10:33:05   (   0.11,-128.26) (   0.84,-131.59)  379.83                80
 04/26/2022   10:14:41   (   0.12,-128.24) (  -0.12,-127.13)  126.10                80
 04/27/2022   22:37:10   (  -0.11,-128.23) (  -1.06,-132.56)  493.23                80
 04/28/2022   22:21:26   (  -0.12,-128.21) (  -0.10,-128.10)   12.97                80
 05/01/2022   10:22:41   (   0.11,-128.15) (   0.29,-129.03)   99.27                80
 05/02/2022   10:06:57   (   0.11,-128.13) (  -0.67,-124.57)  406.11                80