Simultaneous Nadir Overpasses (SNOs) between GOES-17 and NOAA-21
TLE Epoch: 2024 12 19.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 12/20/2024   08:28:14   (   0.01,-104.70) (   0.11,-105.27)   64.37                80
 12/21/2024   08:06:48   (   0.01,-104.70) (  -0.87,-100.73)  452.45                80
 12/22/2024   20:28:41   (  -0.01,-104.66) (  -0.34,-106.02)  155.05                80
 12/23/2024   20:12:35   (  -0.02,-104.67) (   0.71,-101.49)  362.39                80
 12/25/2024   08:34:22   (   0.02,-104.72) (   0.44,-106.76)  232.46                80
 12/26/2024   08:12:55   (   0.02,-104.71) (  -0.55,-102.22)  284.39                80
 12/27/2024   20:34:48   (  -0.02,-104.67) (  -0.65,-107.52)  324.08                80
 12/28/2024   20:18:42   (  -0.02,-104.67) (   0.36,-102.98)  193.07                80
 12/30/2024   08:40:27   (   0.03,-104.72) (   0.85,-108.23)  401.45                80
 12/31/2024   08:19:02   (   0.03,-104.71) (  -0.22,-103.71)  115.07                80
 01/01/2025   20:40:54   (  -0.03,-104.66) (  -1.01,-108.99)  494.44                80