Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2025 9 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)
 10/01/2025   06:20:16   ( -70.51, -99.37) 10/01/2025   06:21:27  ( -70.39, -98.46)   36.14                71
 10/01/2025   07:10:54   (  70.05,  68.65) 10/01/2025   07:10:58  (  70.07,  68.72)    2.94                 4
 10/01/2025   08:01:35   ( -69.94,-123.86) 10/01/2025   08:00:28  ( -69.95,-123.81)    2.34                67
 10/03/2025   22:37:00   ( -70.12,  17.03) 10/03/2025   22:37:58  ( -70.11,  17.03)    0.29                58
 10/03/2025   23:27:44   (  69.98,-175.45) 10/03/2025   23:27:25  (  70.01,-175.48)    3.27                19
 10/04/2025   00:18:14   ( -69.28,  -7.11) 10/04/2025   00:17:05  ( -69.35,  -8.75)   64.69                69
 10/06/2025   14:53:51   ( -70.05, 132.91) 10/06/2025   14:54:25  ( -70.07, 132.87)    3.04                34
 10/06/2025   15:44:36   (  69.97, -59.65) 10/06/2025   15:43:52  (  69.96, -59.65)    0.55                44
 10/09/2025   06:20:07   (  70.43,  80.79) 10/09/2025   06:21:18  (  70.32,  81.48)   28.85                71
 10/09/2025   07:10:43   ( -70.05,-111.30) 10/09/2025   07:10:51  ( -70.05,-111.27)    0.98                 8
 10/09/2025   08:01:27   (  69.91,  56.21) 10/09/2025   08:00:18  (  69.93,  56.21)    2.08                69
 10/11/2025   22:36:53   (  70.13,-162.95) 10/11/2025   22:37:46  (  70.14,-162.87)    3.21                53
 10/11/2025   23:27:34   ( -70.01,   4.55) 10/11/2025   23:27:17  ( -69.98,   4.53)    3.14                17
 10/12/2025   00:18:04   (  69.13, 173.14) 10/12/2025   00:16:56  (  69.20, 171.12)   80.25                68