Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 7 14.  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)
 07/15/2025   10:25:20   (   0.01,-137.00) (  -0.33,-135.46)  175.83                80
 07/16/2025   22:47:17   (  -0.01,-137.01) (  -0.87,-140.76)  428.37                80
 07/17/2025   22:31:13   (  -0.01,-137.01) (   0.14,-136.23)   87.85                80
 07/20/2025   10:34:17   (   0.01,-136.99) (  -0.01,-136.98)    2.38                80
 07/22/2025   22:34:50   (  -0.01,-136.97) (  -0.17,-137.76)   89.24                80
 07/23/2025   22:18:45   (  -0.01,-136.96) (   0.84,-133.23)  425.82                80
 07/25/2025   10:40:32   (   0.01,-136.94) (   0.36,-138.49)  177.30                80
 07/26/2025   10:19:08   (   0.00,-136.92) (  -0.65,-133.96)  337.63                80
 07/27/2025   22:41:05   (  -0.00,-136.91) (  -0.52,-139.27)  268.74                80