Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2025 5 8.  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)
 05/09/2025   20:39:36   (   0.01,-104.43) (  -0.98,-108.82)  499.94                80
 05/10/2025   20:23:33   (   0.01,-104.44) (   0.03,-104.29)   17.25                80
 05/13/2025   08:26:40   (  -0.01,-104.44) (   0.11,-105.05)   68.53                80
 05/14/2025   08:05:16   (  -0.01,-104.45) (  -0.90,-100.52)  448.00                80
 05/15/2025   20:27:14   (   0.01,-104.49) (  -0.29,-105.83)  153.13                80
 05/16/2025   20:11:10   (   0.01,-104.49) (   0.73,-101.31)  363.77                80
 05/18/2025   08:32:59   (  -0.00,-104.49) (   0.48,-106.58)  238.61                80
 05/19/2025   08:11:36   (   0.00,-104.49) (  -0.55,-102.05)  277.94                80
 05/20/2025   20:33:33   (  -0.00,-104.52) (  -0.64,-107.36)  323.82                80
 05/21/2025   20:17:30   (  -0.00,-104.53) (   0.39,-102.84)  193.27                80