Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 5 31.  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   06:19:05   (  70.49,  80.73) 05/31/2024   06:20:16  (  70.35,  81.52)   33.33                71
 05/31/2024   07:09:40   ( -70.05,-111.26) 05/31/2024   07:09:49  ( -70.08,-111.24)    3.30                 9
 05/31/2024   08:00:24   (  69.91,  56.26) 05/31/2024   07:59:17  (  69.92,  56.18)    3.17                67
 06/02/2024   22:35:58   (  70.13,-162.95) 06/02/2024   22:36:51  (  70.10,-162.96)    3.24                53
 06/02/2024   23:26:39   ( -70.00,   4.57) 06/02/2024   23:26:21  ( -70.00,   4.52)    2.06                18
 06/03/2024   00:17:08   (  69.07, 173.23) 06/03/2024   00:16:01  (  69.17, 171.04)   87.50                67
 06/05/2024   14:52:57   (  70.10, -47.14) 06/05/2024   14:53:21  (  70.09, -47.09)    1.65                24
 06/05/2024   15:43:38   ( -69.97, 120.38) 06/05/2024   15:42:51  ( -69.99, 120.39)    2.66                47
 06/08/2024   06:19:12   ( -70.20, -98.84) 06/08/2024   06:20:24  ( -70.16, -98.75)    5.40                72
 06/08/2024   07:09:56   (  70.07,  68.66) 06/08/2024   07:09:51  (  70.05,  68.73)    3.49                 5
 06/08/2024   08:00:34   ( -69.83,-123.66) 06/08/2024   07:59:21  ( -69.89,-123.86)   10.31                73
 06/10/2024   22:36:08   ( -70.08,  17.11) 06/10/2024   22:36:53  ( -70.09,  17.03)    3.27                45
 06/10/2024   23:26:53   (  70.00,-175.47) 06/10/2024   23:26:20  (  69.97,-175.49)    3.32                33
 06/13/2024   14:02:35   (  70.68, -35.41) 06/13/2024   14:03:44  (  70.58, -34.00)   53.09                69
 06/13/2024   14:53:07   ( -70.07, 132.88) 06/13/2024   14:53:21  ( -70.09, 132.92)    3.07                14
 06/13/2024   15:43:51   (  69.95, -59.62) 06/13/2024   15:42:48  (  69.97, -59.60)    3.37                63