Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 12 22.  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)
 12/22/2021   22:33:20   (   0.01,-137.20) (  -0.06,-137.50)   34.14                80
 12/23/2021   22:17:15   (   0.01,-137.20) (   0.97,-132.97)  482.74                80
 12/25/2021   10:39:01   (  -0.02,-137.20) (   0.21,-138.23)  116.83                80
 12/26/2021   10:20:16   (  -0.01,-137.20) (  -0.82,-133.70)  399.70                80
 12/27/2021   22:39:30   (   0.02,-137.18) (  -0.39,-138.99)  205.57                80
 12/28/2021   22:23:24   (   0.01,-137.18) (   0.63,-134.45)  310.68                80
 12/30/2021   10:42:31   (  -0.01,-137.16) (   0.54,-139.71)  289.86                80
 12/31/2021   10:23:44   (   0.00,-137.15) (  -0.43,-135.17)  225.76                80
 01/01/2022   22:45:38   (  -0.01,-137.12) (  -0.78,-140.46)  381.33                80
 01/02/2022   22:29:33   (  -0.01,-137.10) (   0.25,-135.92)  133.72                80
 01/04/2022   10:51:19   (   0.01,-137.07) (   0.91,-141.19)  468.22                80