Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 4 4.  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)
 04/04/2021   22:46:34   (   0.04,-137.22) (  -0.70,-140.61)  385.77                80
 04/05/2021   22:30:29   (   0.04,-137.22) (   0.29,-136.07)  130.30                80
 04/07/2021   10:52:17   (  -0.03,-137.21) (   0.90,-141.35)  471.57                80
 04/08/2021   10:30:53   (  -0.03,-137.21) (  -0.09,-136.81)   44.41                80
 04/10/2021   22:34:07   (   0.03,-137.21) (  -0.03,-137.61)   44.64                80
 04/11/2021   22:18:02   (   0.03,-137.21) (   0.96,-133.08)  471.10                80
 04/13/2021   10:39:51   (  -0.03,-137.19) (   0.23,-138.35)  131.61                80
 04/14/2021   10:18:26   (  -0.03,-137.18) (  -0.76,-133.82)  383.49                80
 04/15/2021   22:40:23   (   0.03,-137.17) (  -0.41,-139.13)  222.56                80
 04/16/2021   22:24:19   (   0.03,-137.16) (   0.59,-134.60)  292.18                80
 04/18/2021   10:46:07   (  -0.02,-137.13) (   0.60,-139.87)  311.84                80