Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 4 10.  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)
 04/10/2021   22:36:46   (   0.03,-137.20) (  -0.07,-137.60)   45.87                80
 04/11/2021   22:18:03   (   0.04,-137.19) (   0.98,-133.08)  469.28                80
 04/13/2021   10:39:51   (  -0.03,-137.17) (   0.21,-138.35)  134.31                80
 04/14/2021   10:18:26   (  -0.04,-137.16) (  -0.78,-133.82)  380.30                80
 04/15/2021   22:40:24   (   0.03,-137.14) (  -0.39,-139.13)  226.43                80
 04/16/2021   22:24:19   (   0.03,-137.12) (   0.60,-134.60)  287.80                80
 04/18/2021   10:46:08   (  -0.03,-137.09) (   0.59,-139.87)  317.10                80
 04/19/2021   10:24:43   (  -0.03,-137.06) (  -0.41,-135.34)  196.59                80
 04/20/2021   22:46:40   (   0.02,-137.03) (  -0.77,-140.65)  411.65                80
 04/21/2021   22:30:36   (   0.02,-137.01) (   0.23,-136.12)  101.80                80