Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 1 6.  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   10:19:00   (  -0.05,-128.27) (   0.13,-129.04)   88.67                80
 01/08/2022   10:03:18   (  -0.05,-128.28) (  -0.88,-124.60)  420.18                80
 01/09/2022   22:23:08   (   0.06,-128.31) (  -0.32,-130.03)  195.94                80
 01/10/2022   22:07:26   (   0.05,-128.32) (   0.68,-125.58)  312.84                80
 01/12/2022   10:27:07   (  -0.06,-128.35) (   0.54,-130.97)  299.76                80
 01/13/2022   10:11:25   (  -0.05,-128.36) (  -0.47,-126.53)  208.61                80
 01/14/2022   22:31:14   (   0.05,-128.37) (  -0.78,-131.95)  408.44                80
 01/15/2022   22:15:31   (   0.04,-128.38) (   0.23,-127.50)   99.62                80
 01/18/2022   10:16:50   (  -0.04,-128.39) (  -0.00,-128.45)    6.91                80