Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 5 10.  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)
 05/11/2024   08:04:26   (   0.00,-104.70) (  -0.96,-100.53)  476.49                80
 05/12/2024   20:26:20   (   0.00,-104.69) (  -0.25,-105.82)  128.14                80
 05/13/2024   20:10:15   (   0.01,-104.69) (   0.77,-101.28)  388.86                80
 05/15/2024   08:32:01   (  -0.01,-104.70) (   0.40,-106.54)  209.39                80
 05/16/2024   08:10:36   (  -0.01,-104.71) (  -0.63,-102.01)  307.90                80
 05/17/2024   20:32:30   (   0.01,-104.70) (  -0.56,-107.30)  295.89                80
 05/18/2024   20:16:24   (   0.01,-104.70) (   0.47,-102.76)  221.63                80
 05/20/2024   08:38:10   (  -0.01,-104.72) (   0.74,-108.01)  376.10                80
 05/21/2024   08:16:44   (  -0.02,-104.72) (  -0.30,-103.48)  141.28                80
 05/22/2024   20:38:39   (   0.02,-104.71) (  -0.86,-108.78)  462.79                80
 05/23/2024   20:22:32   (   0.03,-104.71) (   0.13,-104.23)   54.40                80