Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 4 9.  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) (  -0.08,-137.60)   45.38                80
 04/11/2021   22:18:02   (   0.03,-137.20) (   0.97,-133.08)  470.11                80
 04/13/2021   10:39:51   (  -0.03,-137.18) (   0.22,-138.35)  133.08                80
 04/14/2021   10:18:26   (  -0.03,-137.17) (  -0.77,-133.82)  381.82                80
 04/15/2021   22:40:23   (   0.03,-137.16) (  -0.41,-139.13)  224.43                80
 04/16/2021   22:24:19   (   0.03,-137.14) (   0.59,-134.60)  290.09                80
 04/18/2021   10:46:07   (  -0.02,-137.11) (   0.60,-139.87)  314.43                80
 04/19/2021   10:24:43   (  -0.02,-137.09) (  -0.39,-135.34)  199.57                80
 04/20/2021   22:46:40   (   0.01,-137.07) (  -0.78,-140.65)  408.19                80
 04/21/2021   22:30:36   (   0.01,-137.04) (   0.21,-136.12)  105.53                80