Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 11.  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)
 10/11/2025   22:18:11   (   0.01,-137.00) (   0.88,-133.07)  448.00                80
 10/13/2025   10:39:56   (  -0.01,-136.97) (   0.31,-138.32)  154.39                80
 10/14/2025   10:18:31   (  -0.01,-136.96) (  -0.73,-133.79)  361.56                80
 10/15/2025   22:40:25   (   0.01,-136.96) (  -0.46,-139.08)  241.90                80
 10/16/2025   22:24:19   (   0.02,-136.95) (   0.53,-134.54)  274.19                80
 10/18/2025   10:46:04   (  -0.02,-136.92) (   0.65,-139.80)  328.13                80
 10/19/2025   10:24:39   (  -0.01,-136.91) (  -0.40,-135.27)  187.87                80
 10/20/2025   22:46:32   (  -0.01,-136.91) (  -0.85,-140.55)  415.70                80
 10/21/2025   22:30:26   (  -0.02,-136.89) (   0.21,-136.02)  100.12                80
 10/24/2025   10:30:44   (   0.02,-136.83) (   0.02,-136.72)   12.28                80