Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 24.  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)
 04/25/2025   10:45:42   (   0.00,-137.00) (   0.60,-139.73)  310.53                80
 04/26/2025   10:24:19   (  -0.00,-137.00) (  -0.40,-135.20)  205.32                80
 04/27/2025   22:46:17   (   0.00,-137.00) (  -0.78,-140.51)  399.85                80
 04/28/2025   22:30:14   (   0.00,-137.00) (   0.22,-135.98)  115.44                80
 04/30/2025   10:52:04   (  -0.00,-136.99) (   0.97,-141.26)  487.85                80
 05/01/2025   10:30:40   (  -0.00,-136.98) (  -0.03,-136.74)   27.04                80
 05/03/2025   22:33:55   (  -0.01,-136.96) (  -0.12,-137.53)   64.48                80
 05/04/2025   22:17:52   (  -0.02,-136.95) (   0.89,-133.00)  450.42                80
 05/06/2025   10:39:41   (   0.02,-136.93) (   0.34,-138.27)  153.27                80
 05/07/2025   10:18:18   (   0.02,-136.92) (  -0.67,-133.74)  361.43                80