Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 7.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/07/2022   10:19:01   (  -0.05,-128.27) (   0.10,-129.05)   88.75                80
 01/08/2022   10:03:18   (  -0.05,-128.28) (  -0.90,-124.60)  420.06                80
 01/09/2022   22:23:09   (   0.06,-128.31) (  -0.30,-130.03)  196.20                80
 01/10/2022   22:07:25   (   0.05,-128.32) (   0.65,-125.58)  312.55                80
 01/12/2022   10:27:07   (  -0.06,-128.34) (   0.52,-130.98)  300.12                80
 01/13/2022   10:11:25   (  -0.05,-128.35) (  -0.49,-126.53)  208.22                80
 01/14/2022   22:31:14   (   0.05,-128.36) (  -0.75,-131.95)  408.98                80
 01/15/2022   22:15:32   (   0.04,-128.37) (   0.25,-127.51)   99.03                80
 01/18/2022   10:16:51   (  -0.04,-128.39) (  -0.03,-128.45)    7.14                80
 01/20/2022   22:20:58   (   0.04,-128.39) (  -0.19,-129.43)  117.91                80