Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 5 15.  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)
 05/16/2021   10:18:39   (  -0.02,-137.20) (  -0.77,-133.91)  375.12                80
 05/17/2021   22:43:15   (   0.01,-137.19) (  -0.46,-139.21)  230.68                80
 05/18/2021   22:21:50   (   0.01,-137.18) (   0.55,-134.68)  284.94                80
 05/20/2021   10:46:19   (  -0.01,-137.18) (   0.61,-139.95)  316.44                80
 05/21/2021   10:24:54   (  -0.01,-137.17) (  -0.39,-135.42)  198.82                80
 05/22/2021   22:49:32   (   0.00,-137.15) (  -0.77,-140.73)  408.07                80
 05/23/2021   22:28:07   (   0.01,-137.14) (   0.23,-136.20)  106.82                80
 05/25/2021   10:52:34   (  -0.01,-137.12) (   0.99,-141.47)  495.91                80
 05/26/2021   10:31:10   (  -0.01,-137.10) (  -0.02,-136.94)   18.63                80
 05/28/2021   22:34:23   (   0.01,-137.05) (  -0.14,-137.72)   76.40                80