Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2025 8 14.  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)
 08/15/2025   10:46:48   (   0.01,-137.00) (   0.70,-140.00)  343.03                80
 08/16/2025   10:25:24   (   0.01,-136.99) (  -0.32,-135.47)  172.86                80
 08/17/2025   22:47:20   (  -0.02,-136.99) (  -0.85,-140.78)  431.10                80
 08/18/2025   22:31:15   (  -0.02,-136.98) (   0.13,-136.24)   84.45                80
 08/21/2025   10:34:17   (   0.03,-136.94) (   0.05,-136.97)    4.24                80
 08/23/2025   22:34:48   (  -0.03,-136.93) (  -0.23,-137.74)   92.96                80
 08/24/2025   22:18:44   (  -0.03,-136.92) (   0.81,-133.21)  422.33                80
 08/26/2025   10:40:31   (   0.04,-136.89) (   0.41,-138.48)  181.71                80
 08/27/2025   10:19:07   (   0.04,-136.87) (  -0.63,-133.95)  333.19                80