Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 6 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)
 06/08/2022   10:23:18   (  -0.02,-128.22) (   0.15,-128.85)   72.65                80
 06/09/2022   10:07:33   (  -0.01,-128.24) (  -0.85,-124.39)  437.97                80
 06/10/2022   22:27:20   (   0.04,-128.26) (  -0.31,-129.81)  177.18                80
 06/11/2022   22:11:36   (   0.03,-128.28) (   0.69,-125.36)  333.08                80
 06/13/2022   10:31:16   (  -0.06,-128.31) (   0.46,-130.75)  277.31                80
 06/14/2022   10:15:31   (  -0.05,-128.32) (  -0.48,-126.28)  232.18                80
 06/15/2022   22:35:18   (   0.08,-128.32) (  -0.68,-131.70)  385.12                80
 06/16/2022   22:19:34   (   0.07,-128.33) (   0.32,-127.25)  124.30                80
 06/18/2022   10:39:13   (  -0.10,-128.36) (   0.88,-132.63)  486.50                80
 06/19/2022   10:23:28   (  -0.08,-128.37) (  -0.12,-128.17)   22.75                80