Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 8.  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)
 04/09/2025   10:46:03   (   0.00,-137.00) (   0.64,-139.80)  319.87                80
 04/10/2025   10:24:38   (   0.00,-137.00) (  -0.41,-135.27)  197.37                80
 04/11/2025   22:49:11   (  -0.00,-137.00) (  -0.82,-140.56)  406.01                80
 04/12/2025   22:27:46   (   0.00,-137.00) (   0.24,-136.03)  110.96                80
 04/14/2025   10:52:11   (  -0.00,-136.99) (   0.94,-141.29)  489.26                80
 04/15/2025   10:30:45   (  -0.00,-136.99) (  -0.06,-136.75)   27.16                80
 04/17/2025   22:33:51   (  -0.00,-136.96) (  -0.14,-137.50)   61.65                80
 04/18/2025   22:17:45   (  -0.00,-136.95) (   0.87,-132.96)  454.13                80
 04/20/2025   10:36:50   (  -0.01,-136.93) (   0.31,-138.22)  148.12                80
 04/21/2025   10:20:45   (  -0.01,-136.91) (  -0.76,-133.69)  367.21                80