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) (   0.64,-130.06)  318.01                80
 12/21/2022   10:20:47   (  -0.00,-127.22) (  -0.35,-125.62)  183.03                80
 12/22/2022   22:40:42   (   0.01,-127.09) (  -0.88,-131.05)  452.00                80
 12/23/2022   22:25:03   (   0.00,-127.04) (   0.11,-126.62)   48.48                80
 12/26/2022   10:26:29   (  -0.01,-126.96) (   0.15,-127.57)   69.74                80
 12/27/2022   10:10:49   (  -0.00,-126.91) (  -0.85,-123.13)  430.52                80
 12/28/2022   22:30:45   (   0.01,-126.77) (  -0.38,-128.57)  205.06                80
 12/29/2022   22:15:05   (   0.01,-126.72) (   0.62,-124.14)  295.24                80
 12/31/2022   10:34:50   (  -0.02,-126.69) (   0.62,-129.53)  323.36                80
 01/01/2023   10:19:11   (  -0.01,-126.64) (  -0.38,-125.09)  176.82                80