Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 6 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/29/2022   10:36:42   (  -0.17,-128.49) (   0.62,-131.93)  392.84                80
 06/30/2022   10:20:57   (  -0.15,-128.48) (  -0.39,-127.47)  115.38                80
 07/02/2022   22:24:59   (   0.17,-128.47) (   0.18,-128.43)    5.12                80
 07/05/2022   10:26:13   (  -0.18,-128.47) (   0.03,-129.35)  100.05                80
 07/06/2022   10:10:29   (  -0.17,-128.47) (  -0.98,-124.89)  407.75                80
 07/07/2022   22:30:15   (   0.20,-128.44) (  -0.24,-130.30)  212.02                80
 07/08/2022   22:14:30   (   0.19,-128.44) (   0.77,-125.84)  295.51                80
 07/10/2022   10:34:10   (  -0.23,-128.43) (   0.38,-131.23)  318.86                80
 07/11/2022   10:18:24   (  -0.22,-128.41) (  -0.58,-126.77)  187.80                80
 07/12/2022   22:38:11   (   0.25,-128.37) (  -0.59,-132.18)  434.28                80