Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2022 12 2.  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)
 12/02/2022   22:32:46   (   0.01,-137.32) (   0.18,-136.54)   88.96                80
 12/04/2022   10:47:43   (  -0.00,-137.32) (   0.62,-140.15)  322.15                80
 12/05/2022   10:21:50   (  -0.01,-137.31) (  -0.65,-134.54)  317.18                80
 12/06/2022   22:36:56   (   0.00,-137.30) (  -0.21,-138.18)  100.48                80
 12/09/2022   10:28:38   (   0.00,-137.27) (  -0.26,-136.16)  127.06                80
 12/10/2022   22:43:46   (  -0.01,-137.25) (  -0.57,-139.81)  292.29                80
 12/11/2022   22:23:14   (  -0.02,-137.23) (   0.67,-134.20)  345.95                80
 12/13/2022   10:38:06   (   0.02,-137.21) (   0.12,-137.79)   65.27                80
 12/14/2022   22:50:36   (  -0.02,-137.18) (  -0.98,-141.44)  485.99                80
 12/15/2022   22:30:03   (  -0.02,-137.16) (   0.27,-135.83)  151.79                80