Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 15.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/16/2022   10:12:25   (   0.00,-127.44) (  -0.83,-123.65)  431.17                80
 12/17/2022   22:32:20   (   0.01,-127.32) (  -0.41,-129.09)  203.23                80
 12/18/2022   22:16:41   (   0.00,-127.27) (   0.57,-124.65)  298.10                80
 12/20/2022   10:36:27   (  -0.01,-127.26) (   0.63,-130.06)  318.95                80
 12/21/2022   10:20:47   (  -0.01,-127.22) (  -0.36,-125.62)  181.78                80
 12/22/2022   22:40:43   (   0.01,-127.07) (  -0.88,-131.06)  454.17                80
 12/23/2022   22:25:03   (   0.01,-127.02) (   0.11,-126.62)   46.05                80
 12/26/2022   10:26:29   (  -0.01,-126.94) (   0.15,-127.57)   72.45                80
 12/27/2022   10:10:50   (  -0.00,-126.89) (  -0.84,-123.13)  427.50                80
 12/28/2022   22:30:45   (   0.01,-126.74) (  -0.38,-128.58)  209.05                80