Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-20
TLE Epoch: 2021 12 6.  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)
 12/06/2021   22:33:35   (   0.00,-137.18) (  -0.06,-137.58)   44.90                80
 12/07/2021   22:17:30   (  -0.00,-137.18) (   0.95,-133.05)  471.40                80
 12/09/2021   10:36:36   (  -0.00,-137.17) (   0.23,-138.31)  129.49                80
 12/10/2021   10:20:31   (  -0.00,-137.16) (  -0.78,-133.77)  386.63                80
 12/11/2021   22:39:45   (   0.00,-137.15) (  -0.44,-139.06)  218.67                80
 12/12/2021   22:23:39   (   0.00,-137.14) (   0.58,-134.53)  297.38                80
 12/14/2021   10:42:46   (  -0.00,-137.12) (   0.61,-139.79)  303.77                80
 12/15/2021   10:26:40   (   0.00,-137.11) (  -0.41,-135.25)  211.93                80
 12/16/2021   22:45:54   (  -0.00,-137.09) (  -0.80,-140.54)  394.30                80
 12/17/2021   22:29:49   (  -0.01,-137.07) (   0.22,-136.01)  120.94                80
 12/19/2021   10:48:55   (   0.01,-137.05) (   0.97,-141.27)  481.59                80