Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 4 20.  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   10:27:44   (   0.11,-128.33) (   0.43,-129.70)  155.54                80
 04/21/2022   10:06:41   (   0.12,-128.32) (  -0.58,-125.24)  350.49                80
 04/22/2022   22:29:09   (  -0.11,-128.31) (  -0.67,-130.66)  267.99                80
 04/23/2022   22:13:26   (  -0.12,-128.30) (   0.34,-126.21)  238.22                80
 04/25/2022   10:33:05   (   0.11,-128.26) (   0.85,-131.59)  379.76                80
 04/26/2022   10:14:41   (   0.12,-128.24) (  -0.10,-127.13)  126.20                80
 04/27/2022   22:37:10   (  -0.11,-128.23) (  -1.08,-132.55)  492.98                80
 04/28/2022   22:21:26   (  -0.12,-128.21) (  -0.06,-128.10)   13.50                80
 05/01/2022   10:22:41   (   0.11,-128.16) (   0.31,-129.02)   99.11                80
 05/02/2022   10:06:58   (   0.11,-128.13) (  -0.71,-124.58)  406.27                80
 05/03/2022   22:26:46   (  -0.10,-128.11) (  -0.51,-129.99)  214.29                80