Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 9 27.  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)
 09/28/2025   10:18:50   (  -0.01,-136.99) (  -0.70,-133.88)  354.63                80
 09/29/2025   22:40:44   (   0.00,-136.98) (  -0.51,-139.17)  249.80                80
 09/30/2025   22:24:39   (   0.01,-136.97) (   0.51,-134.63)  265.81                80
 10/02/2025   10:46:26   (  -0.02,-136.95) (   0.62,-139.91)  336.95                80
 10/03/2025   10:25:00   (  -0.02,-136.93) (  -0.35,-135.36)  178.49                80
 10/04/2025   22:46:54   (   0.01,-136.91) (  -0.85,-140.65)  426.76                80
 10/05/2025   22:30:48   (   0.01,-136.90) (   0.18,-136.12)   88.61                80
 10/08/2025   10:31:08   (   0.01,-136.84) (   0.02,-136.84)    0.59                80
 10/10/2025   22:34:16   (  -0.03,-136.79) (  -0.23,-137.59)   92.07                80