Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2022 12 9.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 12/09/2022   10:40:58   (   0.02,-137.33) (   0.31,-138.50)  134.44                80
 12/10/2022   10:17:20   (   0.02,-137.33) (  -0.82,-133.43)  443.03                80
 12/11/2022   22:35:54   (  -0.00,-137.31) (  -0.11,-137.93)   69.69                80
 12/14/2022   10:35:55   (  -0.01,-137.31) (   0.00,-137.28)    2.67                80
 12/16/2022   22:30:51   (   0.02,-137.28) (   0.16,-136.71)   65.57                80
 12/18/2022   10:51:49   (  -0.01,-137.27) (   0.85,-141.13)  439.86                80
 12/19/2022   10:28:11   (  -0.01,-137.25) (  -0.30,-136.06)  136.71                80
 12/20/2022   22:49:24   (   0.00,-137.22) (  -0.76,-140.54)  378.35                80
 12/21/2022   22:25:45   (   0.00,-137.20) (   0.39,-135.47)  197.63                80