Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 5 3.  Predictions up to the next  14.0 days:

     Date     Time(GOES-18)   GOES-18 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 05/03/2025   22:36:35   (   0.00,-136.99) (  -0.12,-137.52)   60.79                80
 05/04/2025   22:15:12   (   0.00,-136.99) (   0.89,-133.00)  454.54                80
 05/06/2025   10:39:42   (  -0.00,-136.98) (   0.28,-138.28)  148.06                80
 05/07/2025   10:18:19   (  -0.00,-136.97) (  -0.73,-133.75)  367.18                80
 05/08/2025   22:42:56   (   0.00,-136.97) (  -0.47,-139.06)  238.75                80
 05/09/2025   22:24:12   (   0.00,-136.96) (   0.55,-134.53)  276.22                80
 05/11/2025   10:46:03   (  -0.00,-136.94) (   0.62,-139.82)  327.27                80
 05/12/2025   10:24:38   (  -0.00,-136.93) (  -0.34,-135.28)  187.26                80
 05/13/2025   22:46:35   (  -0.00,-136.91) (  -0.84,-140.59)  420.09                80
 05/14/2025   22:30:32   (  -0.00,-136.89) (   0.18,-136.06)   93.98                80
 05/17/2025   10:33:38   (   0.02,-136.83) (   0.00,-136.81)    2.87                80