Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 5 16.  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)
 05/17/2021   22:43:15   (   0.01,-137.20) (  -0.46,-139.21)  229.36                80
 05/18/2021   22:21:50   (   0.01,-137.20) (   0.55,-134.68)  286.86                80
 05/20/2021   10:46:19   (  -0.01,-137.20) (   0.61,-139.95)  313.48                80
 05/21/2021   10:24:54   (  -0.01,-137.20) (  -0.39,-135.42)  202.38                80
 05/22/2021   22:49:32   (   0.00,-137.19) (  -0.77,-140.73)  403.73                80
 05/23/2021   22:28:07   (   0.01,-137.18) (   0.23,-136.20)  111.73                80
 05/25/2021   10:52:35   (  -0.01,-137.17) (   0.93,-141.48)  489.95                80
 05/26/2021   10:31:11   (  -0.01,-137.16) (  -0.08,-136.95)   24.98                80
 05/28/2021   22:34:23   (   0.01,-137.12) (  -0.13,-137.72)   68.48                80
 05/29/2021   22:18:18   (   0.01,-137.10) (   0.88,-133.19)  445.91                80