Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 4 1.  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)
 04/02/2025   20:33:35   (   0.04,-104.42) (  -0.62,-107.35)  333.82                80
 04/03/2025   20:17:29   (   0.03,-104.41) (   0.42,-102.81)  182.91                80
 04/05/2025   08:39:15   (  -0.03,-104.38) (   0.78,-108.07)  419.91                80
 04/06/2025   08:17:48   (  -0.02,-104.38) (  -0.20,-103.53)   96.86                80
 04/08/2025   20:23:37   (   0.01,-104.41) (   0.05,-104.30)   13.63                80
 04/11/2025   08:26:36   (  -0.01,-104.40) (   0.15,-105.01)   70.93                80
 04/12/2025   08:05:10   (  -0.01,-104.40) (  -0.90,-100.48)  446.36                80
 04/13/2025   20:27:05   (   0.01,-104.43) (  -0.26,-105.78)  153.91                80
 04/14/2025   20:10:58   (   0.02,-104.43) (   0.74,-101.24)  363.53                80