Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 2 14.  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)
 02/14/2024   15:42:36   ( -70.19, 120.12) 02/14/2024   15:43:48  ( -70.12, 120.47)   15.40                72
 02/14/2024   16:33:17   (  69.91, -72.14) 02/14/2024   16:33:17  (  69.91, -72.18)    1.57                 0
 02/14/2024   17:23:59   ( -69.84,  95.29) 02/14/2024   17:22:46  ( -69.85,  95.36)    3.05                73
 02/17/2024   07:59:23   ( -70.00,-123.78) 02/17/2024   08:00:17  ( -69.99,-123.83)    1.83                54
 02/17/2024   08:50:07   (  69.88,  43.70) 02/17/2024   08:49:44  (  69.89,  43.67)    1.44                23
 02/17/2024   09:40:34   ( -69.00,-147.72) 02/17/2024   09:39:27  ( -69.06,-149.81)   83.34                67
 02/20/2024   00:16:12   ( -69.97,  -7.95) 02/20/2024   00:16:42  ( -69.97,  -7.96)    0.34                30
 02/20/2024   01:06:56   (  69.86, 159.52) 02/20/2024   01:06:09  (  69.87, 159.53)    0.60                47
 02/22/2024   15:42:24   (  70.27, -59.93) 02/22/2024   15:43:35  (  70.18, -59.41)   21.97                71
 02/22/2024   16:33:02   ( -69.97, 107.85) 02/22/2024   16:33:07  ( -69.96, 107.91)    2.51                 5
 02/22/2024   17:23:46   (  69.86, -84.68) 02/22/2024   17:22:34  (  69.85, -84.60)    3.24                72
 02/25/2024   07:59:09   (  70.02,  56.25) 02/25/2024   08:00:02  (  70.00,  56.23)    2.31                53
 02/25/2024   08:49:51   ( -69.93,-136.29) 02/25/2024   08:49:31  ( -69.94,-136.21)    3.53                20
 02/25/2024   09:40:19   (  68.97,  32.40) 02/25/2024   09:39:12  (  69.06,  30.24)   86.40                67
 02/28/2024   00:15:58   (  70.00, 172.09) 02/28/2024   00:16:25  (  69.99, 172.12)    1.57                27
 02/28/2024   01:06:40   ( -69.90, -20.45) 02/28/2024   01:05:55  ( -69.88, -20.40)    3.02                45