Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 17.  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)
 03/17/2025   22:18:25   (   0.00,-136.99) (   0.88,-133.10)  443.76                80
 03/19/2025   10:40:11   (  -0.00,-136.97) (   0.30,-138.36)  158.55                80
 03/20/2025   10:18:45   (  -0.00,-136.96) (  -0.69,-133.83)  356.85                80
 03/21/2025   22:40:42   (  -0.00,-136.95) (  -0.48,-139.14)  248.91                80
 03/22/2025   22:24:36   (   0.00,-136.93) (   0.52,-134.60)  266.06                80
 03/24/2025   10:43:42   (  -0.00,-136.90) (   0.65,-139.87)  337.71                80
 03/25/2025   10:27:37   (  -0.01,-136.88) (  -0.36,-135.33)  176.89                80
 03/26/2025   22:46:52   (   0.01,-136.86) (  -0.84,-140.63)  429.88                80
 03/27/2025   22:30:47   (   0.01,-136.84) (   0.18,-136.10)   84.64                80
 03/30/2025   10:31:07   (  -0.01,-136.77) (   0.01,-136.82)    5.68                80