Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 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)
 12/29/2022   22:12:28   (   0.01,-127.63) (   0.77,-124.17)  394.82                80
 12/31/2022   10:34:54   (  -0.01,-127.76) (   0.41,-129.57)  207.57                80
 01/01/2023   10:19:15   (  -0.01,-127.79) (  -0.58,-125.14)  302.26                80
 01/02/2023   22:41:50   (   0.01,-127.77) (  -0.63,-130.58)  320.28                80
 01/03/2023   22:20:50   (   0.01,-127.80) (   0.36,-126.14)  188.94                80
 01/05/2023   10:43:17   (  -0.01,-127.91) (   0.82,-131.55)  414.92                80
 01/06/2023   10:27:37   (  -0.00,-127.94) (  -0.18,-127.11)   94.27                80
 01/08/2023   22:31:53   (  -0.00,-127.94) (  -0.02,-128.12)   19.92                80
 01/09/2023   22:10:54   (  -0.01,-127.96) (   0.99,-123.68)  488.84                80
 01/11/2023   10:33:19   (   0.00,-128.06) (   0.25,-129.07)  116.10                80