Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 4 21.  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)
 04/21/2021   22:27:57   (   0.03,-137.20) (   0.28,-136.13)  122.55                80
 04/23/2021   10:52:25   (  -0.02,-137.21) (   0.90,-141.40)  477.85                80
 04/24/2021   10:31:01   (  -0.02,-137.20) (  -0.10,-136.87)   38.02                80
 04/26/2021   22:36:53   (   0.02,-137.19) (  -0.07,-137.65)   52.49                80
 04/27/2021   22:15:29   (   0.03,-137.18) (   0.92,-133.12)  462.77                80
 04/29/2021   10:39:57   (  -0.02,-137.17) (   0.26,-138.39)  139.35                80
 04/30/2021   10:18:33   (  -0.02,-137.16) (  -0.74,-133.86)  375.35                80
 05/01/2021   22:40:30   (   0.02,-137.13) (  -0.42,-139.18)  232.47                80
 05/02/2021   22:24:26   (   0.02,-137.12) (   0.58,-134.64)  282.04                80
 05/04/2021   10:46:14   (  -0.01,-137.10) (   0.60,-139.92)  320.91                80