Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 12 26.  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)
 12/27/2024   21:47:21   ( -70.25,  29.47) 12/27/2024   21:48:22  ( -70.24,  29.54)    3.00                61
 12/27/2024   22:38:04   (  70.10,-163.00) 12/27/2024   22:37:50  (  70.08,-163.04)    2.92                14
 12/27/2024   23:28:37   ( -69.52,   5.18) 12/27/2024   23:27:27  ( -69.58,   3.90)   50.13                70
 12/30/2024   14:04:10   ( -70.17, 145.37) 12/30/2024   14:04:51  ( -70.15, 145.31)    3.14                41
 12/30/2024   14:54:54   (  70.08, -47.17) 12/30/2024   14:54:17  (  70.10, -47.13)    3.24                37
 01/02/2025   05:30:29   (  70.90,  92.68) 01/02/2025   05:31:37  (  70.78,  94.49)   67.41                68
 01/02/2025   06:20:59   ( -70.16, -98.83) 01/02/2025   06:21:16  ( -70.18, -98.76)    3.29                17
 01/02/2025   07:11:42   (  70.01,  68.71) 01/02/2025   07:10:44  (  70.01,  68.64)    2.37                58
 01/04/2025   21:47:06   (  70.22,-150.45) 01/04/2025   21:48:13  (  70.21,-150.46)    1.38                67
 01/04/2025   22:37:48   ( -70.12,  17.03) 01/04/2025   22:37:43  ( -70.10,  17.02)    1.47                 5
 01/04/2025   23:28:26   (  69.71,-175.04) 01/04/2025   23:27:14  (  69.77,-175.81)   30.16                72
 01/07/2025   14:03:55   (  70.19, -34.62) 01/07/2025   14:04:38  (  70.19, -34.59)    0.96                43
 01/07/2025   14:54:37   ( -70.09, 132.86) 01/07/2025   14:54:08  ( -70.09, 132.89)    1.26                29