Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 16.  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)
 03/16/2025   22:34:29   (  -0.00,-137.00) (  -0.17,-137.62)   72.24                80
 03/17/2025   22:18:24   (   0.00,-136.99) (   0.88,-133.10)  443.74                80
 03/19/2025   10:40:11   (  -0.00,-136.97) (   0.31,-138.36)  158.59                80
 03/20/2025   10:18:45   (  -0.00,-136.96) (  -0.68,-133.83)  356.80                80
 03/21/2025   22:40:42   (  -0.00,-136.95) (  -0.49,-139.13)  248.99                80
 03/22/2025   22:24:36   (   0.00,-136.93) (   0.51,-134.60)  265.95                80
 03/24/2025   10:43:42   (  -0.00,-136.90) (   0.67,-139.86)  337.86                80
 03/25/2025   10:27:37   (  -0.01,-136.88) (  -0.33,-135.33)  176.71                80
 03/26/2025   22:46:53   (   0.01,-136.86) (  -0.81,-140.64)  430.13                80
 03/27/2025   22:30:47   (   0.01,-136.84) (   0.14,-136.09)   84.43                80
 03/30/2025   10:31:08   (  -0.01,-136.77) (   0.01,-136.82)    5.94                80