Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 12 28.  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)
 12/30/2024   14:04:10   ( -70.20, 145.33) 12/30/2024   14:04:50  ( -70.17, 145.33)    3.37                40
 12/30/2024   14:54:53   (  70.05, -47.13) 12/30/2024   14:54:17  (  70.06, -47.18)    2.32                36
 01/02/2025   05:30:29   (  70.87,  92.73) 01/02/2025   05:31:37  (  70.79,  94.50)   65.52                68
 01/02/2025   06:20:59   ( -70.14, -98.79) 01/02/2025   06:21:17  ( -70.13, -98.84)    1.94                18
 01/02/2025   07:11:43   (  70.04,  68.67) 01/02/2025   07:10:44  (  70.02,  68.65)    2.19                59
 01/04/2025   21:47:06   (  70.19,-150.40) 01/04/2025   21:48:13  (  70.20,-150.47)    2.82                67
 01/04/2025   22:37:48   ( -70.09,  17.07) 01/04/2025   22:37:43  ( -70.09,  17.01)    2.46                 5
 01/04/2025   23:28:26   (  69.68,-175.00) 01/04/2025   23:27:15  (  69.70,-175.89)   34.56                71
 01/07/2025   14:03:55   (  70.16, -34.57) 01/07/2025   14:04:38  (  70.16, -34.63)    2.28                43
 01/07/2025   14:54:36   ( -70.06, 132.90) 01/07/2025   14:54:07  ( -70.06, 132.85)    1.97                29
 01/10/2025   05:30:14   ( -71.03, -87.49) 01/10/2025   05:31:21  ( -70.95, -85.19)   83.56                67
 01/10/2025   06:20:43   (  70.15,  81.24) 01/10/2025   06:21:01  (  70.13,  81.22)    2.78                18
 01/10/2025   07:11:25   ( -70.05,-111.29) 01/10/2025   07:10:31  ( -70.02,-111.30)    3.19                54