Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2022 12 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2022   10:36:27   (  -0.01,-127.27) (   0.60,-130.06)  318.08                80
 12/21/2022   10:20:48   (  -0.00,-127.22) (  -0.39,-125.63)  182.91                80
 12/22/2022   22:40:42   (   0.01,-127.09) (  -0.90,-131.05)  452.34                80
 12/23/2022   22:25:03   (   0.00,-127.04) (   0.09,-126.61)   48.10                80
 12/26/2022   10:26:29   (  -0.01,-126.96) (   0.11,-127.58)   70.22                80
 12/27/2022   10:10:49   (  -0.00,-126.91) (  -0.83,-123.13)  430.03                80
 12/28/2022   22:30:44   (   0.01,-126.76) (  -0.39,-128.57)  205.75                80
 12/29/2022   22:15:05   (   0.01,-126.71) (   0.61,-124.13)  294.48                80
 12/31/2022   10:34:50   (  -0.02,-126.69) (   0.63,-129.53)  324.09                80
 01/01/2023   10:19:11   (  -0.01,-126.63) (  -0.37,-125.09)  176.03                80