Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 1.  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)
 10/02/2025   10:46:26   (  -0.02,-137.00) (   0.62,-139.90)  330.96                80
 10/03/2025   10:25:00   (  -0.02,-137.00) (  -0.41,-135.37)  185.85                80
 10/04/2025   22:46:55   (   0.02,-137.00) (  -0.78,-140.67)  417.50                80
 10/05/2025   22:30:48   (   0.02,-137.00) (   0.19,-136.12)   99.42                80
 10/08/2025   10:31:08   (   0.03,-136.98) (  -0.01,-136.84)   15.94                80
 10/10/2025   22:34:16   (  -0.03,-136.95) (  -0.18,-137.59)   73.37                80
 10/11/2025   22:15:30   (  -0.02,-136.94) (   0.87,-133.06)  442.03                80
 10/13/2025   10:39:56   (   0.02,-136.91) (   0.32,-138.32)  160.43                80
 10/14/2025   10:18:29   (   0.02,-136.89) (  -0.68,-133.78)  354.74                80