Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 12 23.  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)
 12/23/2021   22:17:14   (   0.01,-137.21) (   0.94,-132.96)  483.30                80
 12/25/2021   10:36:20   (  -0.02,-137.21) (   0.24,-138.22)  116.11                80
 12/26/2021   10:20:15   (  -0.02,-137.21) (  -0.79,-133.69)  400.74                80
 12/27/2021   22:39:30   (   0.02,-137.20) (  -0.37,-138.99)  203.98                80
 12/28/2021   22:23:25   (   0.02,-137.19) (   0.66,-134.46)  312.56                80
 12/30/2021   10:42:30   (  -0.01,-137.19) (   0.57,-139.71)  287.79                80
 12/31/2021   10:26:25   (  -0.01,-137.17) (  -0.46,-135.17)  228.07                80
 01/01/2022   22:45:39   (  -0.00,-137.14) (  -0.75,-140.46)  378.43                80
 01/02/2022   22:29:33   (  -0.01,-137.13) (   0.28,-135.93)  137.01                80
 01/04/2022   10:51:19   (   0.01,-137.11) (   0.94,-141.18)  464.60                80
 01/05/2022   10:29:53   (   0.01,-137.09) (  -0.09,-136.65)   50.45                80