Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2023 2 23.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 02/23/2023   22:33:50   (   0.00,-137.01) (  -0.14,-137.60)   68.37                80
 02/24/2023   22:17:45   (   0.00,-137.00) (   0.88,-133.08)  447.74                80
 02/26/2023   10:39:33   (  -0.00,-137.00) (   0.32,-138.34)  153.78                80
 02/27/2023   10:18:08   (  -0.00,-137.00) (  -0.70,-133.82)  361.87                80
 02/28/2023   22:40:04   (   0.01,-136.98) (  -0.49,-139.12)  244.30                80
 03/01/2023   22:24:00   (   0.01,-136.98) (   0.54,-134.60)  270.98                80
 03/03/2023   10:43:07   (  -0.02,-136.96) (   0.66,-139.87)  331.66                80
 03/04/2023   10:27:03   (  -0.02,-136.95) (  -0.38,-135.34)  183.36                80
 03/05/2023   22:46:19   (   0.02,-136.93) (  -0.80,-140.65)  423.60                80
 03/06/2023   22:30:14   (   0.02,-136.92) (   0.18,-136.11)   91.34                80