Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 12 30.  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)
 12/31/2024   22:41:36   (  -0.00,-137.00) (  -0.50,-139.24)  254.65                80
 01/01/2025   22:25:29   (  -0.01,-137.00) (   0.52,-134.70)  262.50                80
 01/03/2025   10:47:14   (   0.01,-137.00) (   0.65,-139.97)  337.85                80
 01/04/2025   10:25:47   (   0.01,-136.99) (  -0.31,-135.42)  179.03                80
 01/05/2025   22:47:40   (  -0.02,-136.99) (  -0.83,-140.72)  424.37                80
 01/06/2025   22:31:33   (  -0.02,-136.98) (   0.14,-136.17)   92.25                80
 01/09/2025   10:34:31   (   0.02,-136.96) (   0.03,-136.89)    7.38                80
 01/11/2025   22:37:35   (  -0.03,-136.92) (  -0.22,-137.64)   82.05                80
 01/12/2025   22:16:09   (  -0.03,-136.91) (   0.83,-133.11)  433.61                80