Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 7 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)
 07/10/2021   22:28:13   (  -0.02,-137.18) (   0.17,-136.26)  104.38                80
 07/12/2021   10:52:41   (   0.03,-137.17) (   0.98,-141.54)  496.66                80
 07/13/2021   10:31:16   (   0.03,-137.17) (   0.02,-136.99)   19.32                80
 07/15/2021   22:37:08   (  -0.03,-137.15) (  -0.18,-137.77)   71.46                80
 07/16/2021   22:15:43   (  -0.03,-137.14) (   0.84,-133.24)  443.75                80
 07/18/2021   10:40:11   (   0.03,-137.12) (   0.32,-138.52)  158.82                80
 07/19/2021   10:18:47   (   0.02,-137.11) (  -0.70,-133.99)  355.73                80
 07/20/2021   22:43:23   (  -0.01,-137.08) (  -0.48,-139.30)  252.39                80
 07/21/2021   22:21:59   (   0.01,-137.06) (   0.54,-134.77)  261.42                80
 07/23/2021   10:43:46   (  -0.01,-137.02) (   0.67,-140.03)  342.84                80