Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/03/2022   22:33:24   (   0.05,-128.21) (  -0.91,-132.55)  494.36                80
 01/04/2022   22:17:42   (   0.05,-128.23) (   0.10,-128.10)   14.84                80
 01/07/2022   10:19:01   (  -0.05,-128.27) (   0.11,-129.05)   88.39                80
 01/08/2022   10:03:18   (  -0.05,-128.29) (  -0.90,-124.60)  420.61                80
 01/09/2022   22:23:08   (   0.06,-128.32) (  -0.35,-130.02)  195.28                80
 01/10/2022   22:07:25   (   0.05,-128.33) (   0.66,-125.58)  313.65                80
 01/12/2022   10:27:06   (  -0.06,-128.35) (   0.56,-130.97)  298.84                80
 01/13/2022   10:11:24   (  -0.05,-128.37) (  -0.45,-126.52)  209.70                80
 01/14/2022   22:31:14   (   0.05,-128.38) (  -0.73,-131.96)  407.06                80
 01/15/2022   22:15:31   (   0.04,-128.39) (   0.23,-127.50)  101.15                80