Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 3 15.  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   22:34:30   (   0.00,-137.00) (  -0.13,-137.63)   72.30                80
 03/17/2025   22:18:24   (   0.00,-136.99) (   0.86,-133.10)  443.61                80
 03/19/2025   10:40:11   (  -0.00,-136.97) (   0.33,-138.36)  158.69                80
 03/20/2025   10:18:46   (  -0.00,-136.96) (  -0.72,-133.84)  356.70                80
 03/21/2025   22:40:41   (   0.00,-136.95) (  -0.51,-139.13)  249.08                80
 03/22/2025   22:24:37   (  -0.00,-136.93) (   0.55,-134.61)  265.95                80
 03/24/2025   10:46:22   (   0.00,-136.90) (   0.69,-139.86)  337.74                80
 03/25/2025   10:27:38   (  -0.00,-136.88) (  -0.38,-135.34)  176.87                80
 03/26/2025   22:46:53   (   0.00,-136.86) (  -0.83,-140.63)  430.01                80
 03/27/2025   22:30:48   (   0.00,-136.84) (   0.19,-136.10)   84.49                80