Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 18.  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)
 10/19/2025   10:24:39   (  -0.02,-136.99) (  -0.42,-135.27)  196.91                80
 10/20/2025   22:49:13   (   0.01,-137.00) (  -0.76,-140.56)  405.39                80
 10/21/2025   22:27:47   (   0.00,-137.00) (   0.23,-136.02)  111.54                80
 10/23/2025   10:52:11   (   0.01,-136.98) (   0.98,-141.27)  489.33                80
 10/24/2025   10:30:45   (   0.01,-136.97) (  -0.02,-136.73)   26.97                80
 10/26/2025   22:36:32   (  -0.01,-136.95) (  -0.16,-137.48)   61.59                80
 10/27/2025   22:15:07   (  -0.01,-136.93) (   0.91,-132.95)  454.02                80
 10/29/2025   10:39:31   (   0.01,-136.90) (   0.29,-138.21)  148.48                80
 10/30/2025   10:18:05   (   0.01,-136.88) (  -0.72,-133.67)  366.72                80
 10/31/2025   22:42:38   (  -0.02,-136.86) (  -0.51,-138.95)  238.61                80