Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 5 30.  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)
 05/31/2024   06:19:04   (  70.44,  80.80) 05/31/2024   06:20:16  (  70.33,  81.34)   23.84                72
 05/31/2024   07:09:41   ( -70.10,-111.34) 05/31/2024   07:09:48  ( -70.10,-111.35)    0.31                 7
 05/31/2024   08:00:26   (  70.02,  56.09) 05/31/2024   07:59:15  (  70.00,  56.15)    3.36                71
 06/02/2024   22:35:59   (  70.19,-163.04) 06/02/2024   22:36:46  (  70.19,-162.98)    2.19                47
 06/02/2024   23:26:40   ( -70.06,   4.48) 06/02/2024   23:26:16  ( -70.08,   4.50)    2.68                24
 06/05/2024   14:02:28   ( -71.02, 144.08) 06/05/2024   14:03:35  ( -70.90, 146.31)   82.10                67
 06/05/2024   14:52:58   (  70.15, -47.22) 06/05/2024   14:53:14  (  70.14, -47.18)    2.59                16
 06/05/2024   15:43:39   ( -70.02, 120.30) 06/05/2024   15:42:44  ( -70.03, 120.30)    0.93                55
 06/08/2024   06:19:12   ( -70.20, -98.85) 06/08/2024   06:20:14  ( -70.22, -98.82)    1.87                62
 06/08/2024   07:09:56   (  70.08,  68.66) 06/08/2024   07:09:41  (  70.11,  68.66)    3.20                15
 06/08/2024   08:00:29   ( -69.52,-123.19) 06/08/2024   07:59:19  ( -69.56,-124.46)   49.50                70
 06/10/2024   22:36:10   ( -70.19,  16.94) 06/10/2024   22:36:40  ( -70.16,  16.98)    3.29                30
 06/10/2024   23:26:54   (  70.06,-175.56) 06/10/2024   23:26:07  (  70.04,-175.54)    2.19                47