Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 9.  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)
 10/10/2025   22:34:17   (   0.01,-137.00) (  -0.11,-137.61)   68.40                80
 10/11/2025   22:18:11   (   0.01,-137.00) (   0.87,-133.06)  447.95                80
 10/13/2025   10:39:57   (  -0.01,-136.97) (   0.27,-138.33)  154.27                80
 10/14/2025   10:18:31   (  -0.01,-136.96) (  -0.71,-133.79)  361.66                80
 10/15/2025   22:40:25   (   0.01,-136.96) (  -0.48,-139.08)  241.99                80
 10/16/2025   22:24:20   (   0.01,-136.95) (   0.57,-134.55)  274.09                80
 10/18/2025   10:46:05   (  -0.01,-136.93) (   0.62,-139.81)  327.90                80
 10/19/2025   10:24:38   (  -0.01,-136.91) (  -0.38,-135.26)  188.04                80
 10/20/2025   22:46:33   (  -0.01,-136.91) (  -0.81,-140.56)  415.98                80
 10/21/2025   22:30:26   (  -0.01,-136.89) (   0.18,-136.02)   99.73                80