Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 9 25.  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)
 09/25/2021   10:43:35   (   0.05,-137.22) (   0.69,-140.01)  319.50                80
 09/26/2021   10:27:31   (   0.05,-137.22) (  -0.35,-135.49)  197.16                80
 09/27/2021   22:46:47   (  -0.04,-137.21) (  -0.82,-140.80)  407.67                80
 09/28/2021   22:30:41   (  -0.04,-137.21) (   0.16,-136.26)  108.50                80
 09/30/2021   10:49:49   (   0.03,-137.21) (   1.00,-141.53)  492.65                80
 10/01/2021   10:33:44   (   0.03,-137.20) (  -0.04,-137.00)   23.17                80
 10/03/2021   22:34:15   (  -0.02,-137.17) (  -0.14,-137.77)   67.66                80
 10/04/2021   22:18:10   (  -0.02,-137.16) (   0.85,-133.23)  447.78                80
 10/06/2021   10:37:17   (   0.02,-137.15) (   0.32,-138.50)  154.39                80
 10/07/2021   10:21:12   (   0.02,-137.13) (  -0.67,-133.96)  360.65                80
 10/08/2021   22:40:28   (  -0.02,-137.10) (  -0.48,-139.27)  246.78                80