Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 11.  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)
 03/11/2025   22:28:16   (  -0.00,-137.00) (   0.18,-136.12)   99.81                80
 03/14/2025   10:31:18   (   0.00,-136.99) (  -0.01,-136.85)   15.14                80
 03/16/2025   22:37:09   (   0.01,-136.98) (  -0.16,-137.63)   74.52                80
 03/17/2025   22:18:25   (   0.01,-136.97) (   0.88,-133.10)  441.06                80
 03/19/2025   10:40:11   (  -0.01,-136.95) (   0.32,-138.36)  161.25                80
 03/20/2025   10:18:47   (  -0.01,-136.94) (  -0.73,-133.84)  353.79                80
 03/21/2025   22:40:42   (   0.01,-136.92) (  -0.51,-139.13)  253.01                80
 03/22/2025   22:24:38   (   0.00,-136.90) (   0.54,-134.61)  261.73                80
 03/24/2025   10:46:24   (   0.00,-136.87) (   0.66,-139.87)  341.85                80
 03/25/2025   10:24:58   (   0.00,-136.85) (  -0.34,-135.33)  172.40                80