Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 3 29.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 03/29/2023   10:20:11   (   0.15,-128.09) (  -0.54,-124.94)  359.44                80
 03/30/2023   22:42:43   (  -0.15,-128.17) (  -0.62,-130.37)  250.57                80
 03/31/2023   22:27:00   (  -0.15,-128.19) (   0.38,-125.92)  260.09                80
 04/02/2023   10:46:42   (   0.15,-128.21) (   0.84,-131.30)  352.11                80
 04/03/2023   10:30:59   (   0.15,-128.23) (  -0.17,-126.85)  158.31                80
 04/04/2023   22:50:49   (  -0.15,-128.30) (  -1.04,-132.27)  452.44                80
 04/05/2023   22:35:07   (  -0.15,-128.32) (  -0.02,-127.82)   57.90                80
 04/08/2023   10:36:25   (   0.15,-128.35) (   0.26,-128.74)   45.06                80
 04/09/2023   10:20:42   (   0.15,-128.37) (  -0.76,-124.29)  464.56                80
 04/10/2023   22:40:33   (  -0.14,-128.41) (  -0.43,-129.71)  148.08                80
 04/11/2023   22:24:49   (  -0.15,-128.42) (   0.54,-125.25)  361.13                80