Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 5 12.  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)
 05/12/2021   22:36:59   (   0.02,-137.19) (  -0.07,-137.69)   57.27                80
 05/13/2021   22:15:35   (   0.02,-137.18) (   0.93,-133.16)  458.05                80
 05/15/2021   10:40:02   (  -0.01,-137.16) (   0.29,-138.43)  144.49                80
 05/16/2021   10:18:39   (  -0.02,-137.15) (  -0.77,-133.91)  370.31                80
 05/17/2021   22:43:15   (   0.01,-137.13) (  -0.46,-139.21)  236.82                80
 05/18/2021   22:24:30   (   0.01,-137.11) (   0.55,-134.68)  277.68                80
 05/20/2021   10:46:19   (  -0.01,-137.09) (   0.62,-139.95)  325.95                80
 05/21/2021   10:24:54   (  -0.01,-137.07) (  -0.39,-135.42)  188.19                80
 05/22/2021   22:46:51   (   0.01,-137.04) (  -0.83,-140.72)  420.04                80
 05/23/2021   22:30:46   (   0.01,-137.02) (   0.17,-136.19)   93.74                80