Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 12 19.  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)
 12/19/2021   10:48:57   (  -0.02,-137.21) (   0.88,-141.28)  464.21                80
 12/20/2021   10:30:10   (  -0.01,-137.20) (  -0.09,-136.74)   52.67                80
 12/22/2021   22:33:20   (   0.01,-137.19) (  -0.05,-137.50)   35.90                80
 12/23/2021   22:17:15   (   0.00,-137.18) (   0.97,-132.97)  480.47                80
 12/25/2021   10:36:21   (  -0.01,-137.17) (   0.20,-138.23)  119.89                80
 12/26/2021   10:20:15   (  -0.01,-137.17) (  -0.76,-133.68)  396.11                80
 12/27/2021   22:39:30   (   0.01,-137.14) (  -0.39,-138.99)  210.11                80
 12/28/2021   22:23:24   (   0.01,-137.13) (   0.63,-134.45)  305.59                80
 12/30/2021   10:42:30   (  -0.00,-137.11) (   0.60,-139.70)  295.77                80
 12/31/2021   10:26:24   (   0.00,-137.09) (  -0.42,-135.17)  219.25                80
 01/01/2022   22:45:39   (  -0.01,-137.05) (  -0.78,-140.46)  388.81                80