Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 4 25.  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)
 04/25/2024   22:29:51   (  -0.00,-137.01) (   0.18,-136.13)   99.33                80
 04/28/2024   10:30:13   (   0.00,-137.00) (   0.00,-136.86)   15.58                80
 04/30/2024   22:33:24   (  -0.00,-136.97) (  -0.12,-137.63)   75.03                80
 05/01/2024   22:17:18   (   0.00,-136.95) (   0.88,-133.09)  440.64                80
 05/03/2024   10:39:05   (  -0.00,-136.94) (   0.32,-138.35)  160.56                80
 05/04/2024   10:17:39   (  -0.00,-136.93) (  -0.70,-133.81)  354.89                80
 05/05/2024   22:39:34   (   0.00,-136.90) (  -0.51,-139.10)  251.67                80
 05/06/2024   22:23:28   (   0.00,-136.88) (   0.51,-134.57)  263.51                80
 05/08/2024   10:45:14   (  -0.01,-136.86) (   0.67,-139.82)  338.65                80