Simultaneous Nadir Overpasses (SNOs) between GOES-18 and NOAA-21
TLE Epoch: 2024 12 25.  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)
 12/26/2024   22:35:29   (  -0.01,-137.01) (  -0.20,-137.75)   85.22                80
 12/27/2024   22:19:24   (  -0.01,-137.00) (   0.86,-133.22)  431.24                80
 12/29/2024   10:41:09   (   0.02,-136.98) (   0.34,-138.48)  170.64                80
 12/30/2024   10:19:42   (   0.02,-136.97) (  -0.67,-133.94)  345.20                80
 12/31/2024   22:41:36   (  -0.02,-136.96) (  -0.51,-139.24)  259.72                80
 01/01/2025   22:25:29   (  -0.02,-136.94) (   0.51,-134.70)  255.76                80
 01/03/2025   10:47:15   (   0.01,-136.91) (   0.68,-139.96)  347.21                80
 01/04/2025   10:25:48   (   0.01,-136.90) (  -0.34,-135.43)  167.95                80
 01/05/2025   22:50:20   (  -0.01,-136.87) (  -0.87,-140.71)  437.73                80
 01/06/2025   22:28:54   (  -0.01,-136.85) (   0.15,-136.18)   77.26                80