Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 4 9.  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)
 04/10/2025   10:27:18   (  -0.00,-137.00) (  -0.39,-135.27)  197.08                80
 04/11/2025   22:46:32   (   0.00,-137.00) (  -0.78,-140.57)  406.36                80
 04/12/2025   22:30:25   (   0.00,-136.99) (   0.22,-136.02)  110.46                80
 04/14/2025   10:52:11   (  -0.00,-136.98) (   0.97,-141.28)  490.11                80
 04/15/2025   10:30:44   (  -0.00,-136.98) (  -0.04,-136.74)   26.20                80
 04/17/2025   22:33:52   (   0.01,-136.95) (  -0.10,-137.51)   63.09                80
 04/18/2025   22:17:46   (   0.01,-136.94) (   0.91,-132.97)  452.45                80
 04/20/2025   10:39:31   (  -0.01,-136.91) (   0.27,-138.23)  150.06                80
 04/21/2025   10:18:04   (  -0.01,-136.89) (  -0.74,-133.69)  365.17                80
 04/22/2025   22:39:57   (   0.01,-136.86) (  -0.49,-138.97)  240.84                80