Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/10/2022   10:22:21   (   0.01,-127.68) (  -0.32,-126.13)  176.29                80
 12/11/2022   22:42:16   (   0.00,-127.55) (  -0.93,-131.57)  458.50                80
 12/12/2022   22:26:38   (  -0.00,-127.51) (   0.11,-127.14)   43.19                80
 12/15/2022   10:28:05   (  -0.01,-127.48) (   0.12,-128.10)   71.25                80
 12/16/2022   10:12:25   (   0.00,-127.43) (  -0.86,-123.66)  430.07                80
 12/17/2022   22:32:21   (   0.01,-127.30) (  -0.39,-129.10)  205.38                80
 12/18/2022   22:16:41   (   0.01,-127.25) (   0.59,-124.66)  295.71                80
 12/20/2022   10:36:27   (  -0.02,-127.25) (   0.61,-130.07)  320.95                80
 12/21/2022   10:20:48   (  -0.01,-127.20) (  -0.38,-125.63)  179.57                80
 12/22/2022   22:40:42   (   0.02,-127.05) (  -0.92,-131.05)  457.43                80
 12/23/2022   22:25:03   (   0.01,-126.99) (   0.07,-126.61)   42.62                80