Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 6 26.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/26/2022   22:32:47   (   0.14,-128.47) (  -0.44,-131.00)  288.65                80
 06/27/2022   22:17:03   (   0.13,-128.48) (   0.57,-126.55)  220.14                80
 06/29/2022   10:36:42   (  -0.17,-128.49) (   0.60,-131.93)  392.76                80
 06/30/2022   10:20:57   (  -0.15,-128.49) (  -0.36,-127.47)  115.55                80
 07/02/2022   22:22:18   (   0.17,-128.47) (   0.15,-128.42)    6.00                80
 07/05/2022   10:26:13   (  -0.18,-128.48) (  -0.01,-129.35)   99.54                80
 07/06/2022   10:10:28   (  -0.17,-128.47) (  -0.97,-124.89)  408.36                80
 07/07/2022   22:30:15   (   0.20,-128.45) (  -0.19,-130.31)  211.45                80
 07/08/2022   22:14:30   (   0.19,-128.44) (   0.77,-125.84)  296.18                80