Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 3 24.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/24/2022   10:24:23   (   0.09,-128.24) (   0.30,-129.11)   99.50                80
 03/25/2022   10:03:21   (   0.09,-128.26) (  -0.74,-124.67)  410.28                80
 03/26/2022   22:25:50   (  -0.10,-128.30) (  -0.48,-130.09)  202.81                80
 03/27/2022   22:10:07   (  -0.10,-128.33) (   0.51,-125.63)  306.99                80
 03/29/2022   10:32:26   (   0.11,-128.35) (   0.73,-131.01)  304.39                80
 03/30/2022   10:11:24   (   0.11,-128.37) (  -0.32,-126.57)  205.27                80
 03/31/2022   22:33:53   (  -0.11,-128.41) (  -0.91,-131.99)  408.27                80
 04/01/2022   22:18:09   (  -0.11,-128.43) (   0.09,-127.54)  101.43                80
 04/04/2022   10:22:06   (   0.11,-128.47) (   0.09,-128.48)    2.17                80
 04/06/2022   22:23:32   (  -0.11,-128.51) (  -0.32,-129.45)  106.48                80