Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 8 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)
 08/27/2025   14:03:38   ( -70.33, 145.06) 08/27/2025   14:04:50  ( -70.27, 145.51)   18.18                72
 08/27/2025   14:54:18   (  70.03, -47.17) 08/27/2025   14:54:20  (  70.01, -47.22)    3.33                 2
 08/27/2025   15:45:00   ( -69.91, 120.32) 08/27/2025   15:43:49  ( -69.95, 120.33)    3.54                71
 08/30/2025   06:20:29   ( -70.14, -98.88) 08/30/2025   06:21:21  ( -70.12, -98.82)    3.10                52
 08/30/2025   07:11:12   (  70.00,  68.65) 08/30/2025   07:10:48  (  70.02,  68.68)    2.26                24
 08/30/2025   08:01:39   ( -69.09,-122.71) 08/30/2025   08:00:32  ( -69.13,-124.88)   86.21                67
 09/01/2025   22:37:22   ( -70.06,  17.02) 09/01/2025   22:37:50  ( -70.06,  16.99)    1.20                28
 09/01/2025   23:28:06   (  69.97,-175.53) 09/01/2025   23:27:17  (  69.95,-175.52)    2.09                49
 09/04/2025   14:03:36   (  70.26, -34.83) 09/04/2025   14:04:47  (  70.20, -34.56)   12.25                71
 09/04/2025   14:54:16   ( -70.04, 132.82) 09/04/2025   14:54:18  ( -70.04, 132.84)    0.86                 2
 09/04/2025   15:44:58   (  69.85, -59.57) 09/04/2025   15:43:46  (  69.87, -59.74)    7.37                72
 09/07/2025   06:20:26   (  70.09,  81.21) 09/07/2025   06:21:15  (  70.10,  81.19)    1.97                49
 09/07/2025   07:11:08   ( -69.98,-111.30) 09/07/2025   07:10:45  ( -70.00,-111.32)    2.86                23