Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 6 4.  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)
 06/04/2025   22:34:26   (   0.00,-137.00) (  -0.17,-137.65)   75.01                80
 06/05/2025   22:18:23   (   0.00,-137.00) (   0.86,-133.13)  441.16                80
 06/07/2025   10:40:12   (  -0.00,-137.00) (   0.29,-138.41)  160.42                80
 06/08/2025   10:18:48   (  -0.00,-136.99) (  -0.70,-133.88)  355.24                80
 06/09/2025   22:40:45   (   0.00,-136.99) (  -0.50,-139.18)  250.68                80
 06/10/2025   22:24:42   (   0.00,-136.98) (   0.55,-134.66)  264.41                80
 06/12/2025   10:46:30   (  -0.01,-136.96) (   0.65,-139.93)  338.71                80
 06/13/2025   10:25:05   (  -0.01,-136.94) (  -0.34,-135.40)  175.85                80
 06/14/2025   22:47:03   (   0.01,-136.92) (  -0.85,-140.71)  431.64                80
 06/15/2025   22:30:59   (   0.01,-136.91) (   0.20,-136.18)   82.75                80
 06/18/2025   10:34:03   (  -0.01,-136.86) (  -0.01,-136.92)    7.02                80