Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 10 12.  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)
 10/13/2025   10:39:56   (  -0.01,-136.97) (   0.32,-138.32)  154.51                80
 10/14/2025   10:18:31   (  -0.01,-136.96) (  -0.72,-133.79)  361.40                80
 10/15/2025   22:40:25   (   0.01,-136.96) (  -0.46,-139.08)  242.08                80
 10/16/2025   22:24:20   (   0.02,-136.95) (   0.58,-134.55)  273.95                80
 10/18/2025   10:46:04   (  -0.02,-136.92) (   0.66,-139.80)  328.51                80
 10/19/2025   10:24:39   (  -0.01,-136.91) (  -0.40,-135.27)  187.45                80
 10/20/2025   22:46:32   (  -0.01,-136.90) (  -0.85,-140.55)  416.10                80
 10/21/2025   22:30:26   (  -0.02,-136.89) (   0.21,-136.02)   99.68                80
 10/24/2025   10:30:44   (   0.02,-136.83) (   0.01,-136.72)   11.57                80