Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 11 20.  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)
 11/21/2025   22:49:21   (  -0.02,-137.01) (  -0.80,-140.55)  403.01                80
 11/22/2025   22:27:58   (  -0.01,-137.01) (   0.22,-136.03)  112.18                80
 11/24/2025   10:52:29   (   0.01,-137.00) (   0.95,-141.30)  490.55                80
 11/25/2025   10:31:06   (  -0.00,-136.99) (  -0.07,-136.78)   24.40                80
 11/27/2025   22:37:03   (   0.01,-136.98) (  -0.12,-137.57)   67.55                80
 11/28/2025   22:15:41   (   0.01,-136.97) (   0.91,-133.05)  447.02                80
 11/30/2025   10:40:10   (  -0.01,-136.94) (   0.32,-138.31)  156.57                80
 12/01/2025   10:18:47   (  -0.01,-136.93) (  -0.72,-133.79)  357.56                80
 12/02/2025   22:43:27   (  -0.01,-136.91) (  -0.48,-139.11)  250.06                80
 12/03/2025   22:22:03   (  -0.00,-136.89) (   0.49,-134.57)  263.54                80