Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2022 11 29.  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)
 11/30/2022   10:40:53   (   0.00,-137.33) (   0.28,-138.51)  134.54                80
 12/02/2022   22:32:46   (  -0.01,-137.33) (   0.19,-136.54)   89.86                80
 12/04/2022   10:47:41   (   0.01,-137.33) (   0.65,-140.14)  320.67                80
 12/05/2022   10:21:49   (   0.01,-137.33) (  -0.63,-134.53)  319.07                80
 12/06/2022   22:36:55   (  -0.02,-137.31) (  -0.21,-138.17)   98.12                80
 12/09/2022   10:28:36   (   0.03,-137.29) (  -0.24,-136.15)  130.37                80
 12/10/2022   22:43:43   (  -0.03,-137.27) (  -0.62,-139.80)  288.56                80
 12/11/2022   22:20:31   (  -0.03,-137.25) (   0.64,-134.18)  349.95                80
 12/13/2022   10:38:02   (   0.04,-137.24) (   0.17,-137.77)   60.60                80