Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 25.  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)
 03/26/2025   22:49:33   (  -0.01,-137.00) (  -0.79,-140.64)  413.85                80
 03/27/2025   22:28:06   (  -0.00,-137.00) (   0.17,-136.09)  103.10                80
 03/29/2025   10:52:32   (   0.00,-136.99) (   0.98,-141.36)  497.55                80
 03/30/2025   10:31:07   (  -0.00,-136.99) (  -0.05,-136.83)   18.89                80
 04/01/2025   22:34:16   (   0.02,-136.98) (  -0.13,-137.59)   69.52                80
 04/02/2025   22:18:10   (   0.02,-136.97) (   0.91,-133.06)  446.30                80
 04/04/2025   10:39:56   (  -0.02,-136.95) (   0.28,-138.32)  156.05                80
 04/05/2025   10:18:29   (  -0.02,-136.94) (  -0.71,-133.78)  359.56                80
 04/06/2025   22:40:23   (   0.02,-136.92) (  -0.47,-139.08)  245.42                80
 04/07/2025   22:24:17   (   0.01,-136.91) (   0.53,-134.54)  270.37                80