Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 9 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-20 Lat/Lon    Distance(km)  Time Diff(sec)
 09/23/2021   22:24:28   (  -0.04,-137.20) (   0.48,-134.75)  279.09                80
 09/25/2021   10:43:35   (   0.04,-137.20) (   0.68,-140.02)  321.71                80
 09/26/2021   10:27:31   (   0.04,-137.19) (  -0.36,-135.49)  194.11                80
 09/27/2021   22:46:46   (  -0.03,-137.17) (  -0.87,-140.79)  412.18                80
 09/28/2021   22:30:42   (  -0.03,-137.16) (   0.17,-136.26)  103.15                80
 09/30/2021   10:49:49   (   0.02,-137.15) (   0.99,-141.53)  499.13                80
 10/01/2021   10:33:43   (   0.02,-137.13) (   0.01,-136.99)   15.86                80
 10/03/2021   22:34:14   (  -0.01,-137.09) (  -0.18,-137.76)   77.29                80
 10/04/2021   22:18:10   (  -0.01,-137.07) (   0.86,-133.24)  437.32                80
 10/06/2021   10:37:16   (   0.01,-137.04) (   0.36,-138.49)  165.99                80