Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 6 27.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 06/27/2022   22:17:02   (   0.13,-128.48) (   0.54,-126.54)  220.23                80
 06/29/2022   10:36:41   (  -0.17,-128.49) (   0.63,-131.93)  392.83                80
 06/30/2022   10:20:57   (  -0.15,-128.48) (  -0.38,-127.47)  115.44                80
 07/02/2022   22:24:59   (   0.17,-128.47) (   0.18,-128.43)    5.19                80
 07/05/2022   10:26:13   (  -0.18,-128.47) (   0.02,-129.35)   99.76                80
 07/06/2022   10:10:28   (  -0.17,-128.47) (  -0.99,-124.89)  408.09                80
 07/07/2022   22:30:15   (   0.20,-128.45) (  -0.22,-130.30)  211.67                80
 07/08/2022   22:14:30   (   0.19,-128.44) (   0.79,-125.85)  295.92                80
 07/10/2022   10:34:08   (  -0.23,-128.43) (   0.41,-131.22)  318.27                80