Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 8 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)
 08/27/2025   14:03:39   ( -70.36, 145.01) 08/27/2025   14:04:50  ( -70.30, 145.55)   21.14                71
 08/27/2025   14:54:19   (  70.06, -47.21) 08/27/2025   14:54:20  (  70.03, -47.19)    2.81                 1
 08/27/2025   15:45:01   ( -69.94, 120.28) 08/27/2025   15:43:50  ( -69.92, 120.28)    3.08                71
 08/30/2025   06:20:29   ( -70.12, -98.84) 08/30/2025   06:21:22  ( -70.09, -98.86)    3.23                53
 08/30/2025   07:11:12   (  69.97,  68.69) 08/30/2025   07:10:49  (  69.99,  68.63)    2.66                23
 08/30/2025   08:01:40   ( -69.12,-122.75) 08/30/2025   08:00:32  ( -69.16,-124.85)   83.33                68
 09/01/2025   22:37:22   ( -70.09,  16.98) 09/01/2025   22:37:49  ( -70.08,  17.01)    1.75                27
 09/01/2025   23:28:05   (  69.95,-175.49) 09/01/2025   23:27:16  (  69.98,-175.49)    3.27                49
 09/04/2025   14:03:35   (  70.24, -34.79) 09/04/2025   14:04:46  (  70.22, -34.53)    9.79                71
 09/04/2025   14:54:15   ( -70.02, 132.86) 09/04/2025   14:54:18  ( -70.00, 132.79)    3.19                 3
 09/04/2025   15:44:58   (  69.87, -59.61) 09/04/2025   15:43:45  (  69.89, -59.72)    4.79                73
 09/07/2025   06:20:27   (  70.11,  81.17) 09/07/2025   06:21:15  (  70.12,  81.21)    1.50                48
 09/07/2025   07:11:09   ( -70.00,-111.34) 09/07/2025   07:10:45  ( -70.01,-111.30)    1.81                24