Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 5 11.  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)
 05/12/2024   20:26:20   (   0.01,-104.69) (  -0.27,-105.81)  128.18                80
 05/13/2024   20:10:14   (  -0.01,-104.69) (   0.76,-101.28)  389.18                80
 05/15/2024   08:29:21   (   0.01,-104.70) (   0.40,-106.54)  208.94                80
 05/16/2024   08:13:14   (   0.02,-104.70) (  -0.59,-101.99)  308.56                80
 05/17/2024   20:32:28   (  -0.01,-104.70) (  -0.58,-107.29)  295.16                80
 05/18/2024   20:16:22   (  -0.02,-104.70) (   0.41,-102.74)  222.50                80
 05/20/2024   08:35:28   (   0.01,-104.71) (   0.72,-108.01)  375.24                80
 05/21/2024   08:19:22   (   0.01,-104.71) (  -0.29,-103.47)  142.29                80
 05/22/2024   20:38:35   (   0.00,-104.70) (  -0.91,-108.75)  461.73                80
 05/23/2024   20:22:29   (   0.00,-104.70) (   0.10,-104.21)   55.69                80