Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 14.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/15/2022   10:28:05   (  -0.00,-127.48) (   0.13,-128.10)   70.40                80
 12/16/2022   10:12:25   (   0.00,-127.44) (  -0.85,-123.66)  431.08                80
 12/17/2022   22:32:20   (   0.01,-127.31) (  -0.39,-129.10)  203.55                80
 12/18/2022   22:16:41   (   0.00,-127.27) (   0.59,-124.66)  297.70                80
 12/20/2022   10:36:27   (  -0.01,-127.26) (   0.61,-130.06)  319.26                80
 12/21/2022   10:20:48   (  -0.01,-127.21) (  -0.37,-125.62)  181.41                80
 12/22/2022   22:40:43   (   0.01,-127.07) (  -0.86,-131.06)  454.81                80
 12/23/2022   22:25:04   (   0.01,-127.01) (   0.12,-126.62)   45.44                80
 12/26/2022   10:26:29   (  -0.01,-126.94) (   0.14,-127.58)   73.12                80
 12/27/2022   10:10:50   (  -0.00,-126.88) (  -0.85,-123.14)  426.75                80