Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 3 19.  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)
 03/20/2025   08:39:31   (  -0.04,-104.38) (   0.77,-108.13)  425.98                80
 03/21/2025   08:18:05   (  -0.04,-104.38) (  -0.22,-103.59)   90.29                80
 03/23/2025   20:21:16   (   0.03,-104.41) (   0.07,-104.36)    6.67                80
 03/26/2025   08:26:56   (  -0.02,-104.37) (   0.14,-105.08)   81.54                80
 03/27/2025   08:05:30   (  -0.02,-104.36) (  -0.88,-100.55)  434.90                80
 03/28/2025   20:27:26   (   0.01,-104.40) (  -0.30,-105.85)  165.73                80
 03/29/2025   20:11:20   (   0.02,-104.40) (   0.72,-101.32)  350.93                80
 03/31/2025   08:33:05   (  -0.02,-104.36) (   0.48,-106.58)  252.80                80
 04/01/2025   08:11:40   (  -0.02,-104.35) (  -0.55,-102.05)  263.48                80