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   08:28:13   (   0.01,-104.70) (   0.16,-105.26)   64.26                80
 12/21/2024   08:06:48   (  -0.00,-104.70) (  -0.89,-100.73)  452.07                80
 12/22/2024   20:28:42   (   0.01,-104.66) (  -0.27,-106.03)  155.72                80
 12/23/2024   20:12:36   (   0.01,-104.67) (   0.72,-101.49)  361.59                80
 12/25/2024   08:34:21   (   0.02,-104.71) (   0.49,-106.75)  232.65                80
 12/26/2024   08:12:55   (   0.02,-104.71) (  -0.56,-102.22)  284.22                80
 12/27/2024   20:34:49   (  -0.02,-104.67) (  -0.64,-107.52)  324.41                80
 12/28/2024   20:18:42   (  -0.02,-104.67) (   0.36,-102.98)  192.68                80
 12/30/2024   08:40:29   (   0.02,-104.72) (   0.78,-108.25)  402.03                80
 12/31/2024   08:19:02   (   0.02,-104.71) (  -0.22,-103.71)  114.47                80
 01/01/2025   20:40:54   (  -0.02,-104.65) (  -1.01,-108.99)  495.20                80