Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 12 25.  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)
 12/25/2024   05:30:38   ( -70.66, -86.97) 12/25/2024   05:31:48  ( -70.54, -85.89)   41.88                70
 12/25/2024   06:21:14   (  70.15,  81.15) 12/25/2024   06:21:20  (  70.17,  81.21)    3.40                 6
 12/25/2024   07:11:56   ( -70.04,-111.37) 12/25/2024   07:10:50  ( -70.06,-111.32)    2.55                66
 12/27/2024   21:47:21   ( -70.25,  29.47) 12/27/2024   21:48:22  ( -70.24,  29.54)    2.97                61
 12/27/2024   22:38:04   (  70.10,-163.00) 12/27/2024   22:37:50  (  70.08,-163.04)    3.20                14
 12/27/2024   23:28:37   ( -69.52,   5.18) 12/27/2024   23:27:27  ( -69.58,   3.90)   50.18                70
 12/30/2024   14:04:10   ( -70.16, 145.38) 12/30/2024   14:04:51  ( -70.15, 145.30)    3.13                41
 12/30/2024   14:54:54   (  70.07, -47.17) 12/30/2024   14:54:17  (  70.10, -47.13)    3.39                37
 01/02/2025   05:30:30   (  70.89,  92.70) 01/02/2025   05:31:38  (  70.78,  94.49)   66.57                68
 01/02/2025   06:21:00   ( -70.15, -98.81) 01/02/2025   06:21:18  ( -70.13, -98.84)    2.76                18
 01/02/2025   07:11:43   (  70.00,  68.72) 01/02/2025   07:10:45  (  70.01,  68.64)    3.24                58
 01/04/2025   21:47:06   (  70.20,-150.42) 01/04/2025   21:48:13  (  70.21,-150.46)    1.85                67
 01/04/2025   22:37:48   ( -70.10,  17.06) 01/04/2025   22:37:43  ( -70.11,  17.02)    1.70                 5
 01/04/2025   23:28:26   (  69.69,-175.02) 01/04/2025   23:27:15  (  69.71,-175.88)   33.52                71
 01/07/2025   14:03:55   (  70.16, -34.57) 01/07/2025   14:04:38  (  70.19, -34.59)    3.17                43
 01/07/2025   14:54:37   ( -70.06, 132.90) 01/07/2025   14:54:08  ( -70.09, 132.89)    3.17                29