Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 11 22.  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)
 11/22/2025   22:30:39   (  -0.00,-137.01) (   0.23,-136.03)  112.11                80
 11/24/2025   10:52:28   (   0.01,-137.00) (   1.00,-141.29)  490.40                80
 11/25/2025   10:31:05   (   0.01,-136.99) (  -0.03,-136.77)   24.71                80
 11/27/2025   22:34:22   (  -0.02,-136.98) (  -0.16,-137.56)   66.77                80
 11/28/2025   22:18:20   (  -0.02,-136.97) (   0.87,-133.04)  447.99                80
 11/30/2025   10:40:10   (   0.02,-136.95) (   0.30,-138.32)  155.70                80
 12/01/2025   10:18:47   (   0.02,-136.93) (  -0.68,-133.78)  358.61                80
 12/02/2025   22:40:46   (  -0.03,-136.91) (  -0.52,-139.10)  249.14                80
 12/03/2025   22:24:43   (  -0.03,-136.89) (   0.52,-134.58)  264.61                80
 12/05/2025   10:46:33   (   0.04,-136.85) (   0.71,-139.84)  340.75                80
 12/06/2025   10:25:10   (   0.04,-136.83) (  -0.32,-135.32)  172.41                80