Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2021 12 31.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/01/2022   10:29:16   (  -0.06,-128.17) (   0.74,-131.56)  387.59                80
 01/02/2022   10:13:33   (  -0.05,-128.18) (  -0.26,-127.11)  121.65                80
 01/03/2022   22:33:24   (   0.05,-128.21) (  -0.95,-132.54)  494.34                80
 01/04/2022   22:17:41   (   0.05,-128.23) (   0.06,-128.10)   14.91                80
 01/07/2022   10:19:01   (  -0.05,-128.28) (   0.09,-129.05)   88.15                80
 01/08/2022   10:03:18   (  -0.05,-128.29) (  -0.85,-124.60)  420.94                80
 01/09/2022   22:23:08   (   0.06,-128.32) (  -0.34,-130.03)  194.98                80
 01/10/2022   22:07:25   (   0.05,-128.34) (   0.67,-125.58)  313.97                80
 01/12/2022   10:27:07   (  -0.06,-128.36) (   0.55,-130.97)  298.34                80
 01/13/2022   10:11:24   (  -0.05,-128.37) (  -0.46,-126.53)  210.23                80