Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 6.  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)
 04/06/2024   10:45:22   (   0.02,-137.00) (   0.69,-139.92)  333.40                80
 04/07/2024   10:23:58   (   0.01,-137.00) (  -0.37,-135.40)  182.79                80
 04/08/2024   22:48:35   (  -0.01,-136.99) (  -0.86,-140.69)  422.23                80
 04/09/2024   22:27:11   (  -0.01,-136.99) (   0.20,-136.17)   93.73                80
 04/12/2024   10:32:55   (  -0.00,-136.97) (  -0.01,-136.90)    7.40                80
 04/14/2024   22:33:27   (  -0.00,-136.94) (  -0.19,-137.67)   83.85                80
 04/15/2024   22:17:23   (  -0.01,-136.92) (   0.87,-133.15)  431.39                80
 04/17/2024   10:36:31   (   0.00,-136.91) (   0.37,-138.40)  171.12                80
 04/18/2024   10:20:27   (   0.01,-136.89) (  -0.70,-133.88)  343.94                80
 04/19/2024   22:39:43   (  -0.00,-136.87) (  -0.50,-139.18)  263.08                80