Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 4 1.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/02/2023   10:46:42   (   0.15,-128.18) (   0.83,-131.30)  354.42                80
 04/03/2023   10:30:59   (   0.15,-128.20) (  -0.17,-126.85)  155.09                80
 04/04/2023   22:50:49   (  -0.15,-128.26) (  -1.03,-132.27)  456.69                80
 04/05/2023   22:35:07   (  -0.15,-128.27) (  -0.02,-127.82)   52.76                80
 04/08/2023   10:36:25   (   0.15,-128.27) (   0.26,-128.74)   52.94                80
 04/09/2023   10:20:42   (   0.15,-128.28) (  -0.76,-124.29)  455.66                80
 04/10/2023   22:40:33   (  -0.14,-128.32) (  -0.43,-129.71)  158.04                80
 04/11/2023   22:24:49   (  -0.15,-128.32) (   0.54,-125.25)  350.25                80
 04/13/2023   10:44:29   (   0.14,-128.30) (   0.69,-130.62)  265.83                80
 04/14/2023   10:28:47   (   0.15,-128.30) (  -0.35,-126.18)  242.09                80