Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 9 18.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 09/20/2024   06:20:09   (  70.17,  81.23) 09/20/2024   06:21:13  (  70.16,  81.21)    2.32                64
 09/20/2024   07:10:50   ( -70.04,-111.24) 09/20/2024   07:10:43  ( -70.05,-111.31)    2.78                 7
 09/20/2024   08:01:27   (  69.54,  56.82) 09/20/2024   08:00:16  (  69.61,  55.72)   43.22                71
 09/22/2024   22:37:08   (  70.12,-162.92) 09/22/2024   22:37:40  (  70.12,-162.95)    1.36                32
 09/22/2024   23:27:50   ( -70.03,   4.52) 09/22/2024   23:27:10  ( -70.01,   4.53)    2.15                40
 09/25/2024   14:03:27   ( -70.36, 145.14) 09/25/2024   14:04:38  ( -70.30, 145.56)   17.09                71
 09/25/2024   14:54:08   (  70.08, -47.10) 09/25/2024   14:54:07  (  70.08, -47.12)    0.58                 1
 09/25/2024   15:44:50   ( -69.99, 120.34) 09/25/2024   15:43:37  ( -69.97, 120.37)    2.67                73
 09/28/2024   06:20:23   ( -70.13, -98.74) 09/28/2024   06:21:06  ( -70.14, -98.78)    1.55                43
 09/28/2024   07:11:07   (  70.00,  68.77) 09/28/2024   07:10:33  (  70.02,  68.70)    3.04                34
 09/30/2024   21:46:46   (  70.48,-150.84) 09/30/2024   21:47:57  (  70.39,-150.14)   28.06                71
 09/30/2024   22:37:22   ( -70.08,  17.10) 09/30/2024   22:37:31  ( -70.07,  17.03)    3.00                 9
 09/30/2024   23:28:07   (  70.00,-175.48) 09/30/2024   23:26:57  (  70.00,-175.42)    2.24                70