Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 7 2.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 07/02/2022   22:22:47   (   0.17,-128.47) (   0.16,-128.42)    6.06                52
 07/05/2022   10:26:14   (  -0.18,-128.48) (  -0.01,-129.35)   99.34                80
 07/06/2022   10:10:28   (  -0.17,-128.47) (  -0.97,-124.89)  408.56                80
 07/07/2022   22:30:15   (   0.20,-128.45) (  -0.20,-130.30)  211.01                80
 07/08/2022   22:14:30   (   0.19,-128.44) (   0.76,-125.84)  296.60                80
 07/10/2022   10:34:09   (  -0.23,-128.44) (   0.40,-131.23)  317.67                80
 07/11/2022   10:18:24   (  -0.22,-128.42) (  -0.56,-126.76)  189.07                80
 07/12/2022   22:38:11   (   0.25,-128.38) (  -0.61,-132.18)  432.89                80
 07/13/2022   22:22:27   (   0.24,-128.37) (   0.41,-127.72)   73.74                80
 07/16/2022   10:23:39   (  -0.26,-128.34) (  -0.17,-128.63)   34.61                80