Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 2 12.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-9) LANDSAT-9 Lat/Lon    Distance(km)  Time Diff(sec)
 02/13/2024   08:24:52   (  69.96,  49.90) 02/13/2024   08:25:14  (  69.93,  49.92)    3.01                22
 02/13/2024   09:15:33   ( -69.83,-142.59) 02/13/2024   09:14:44  ( -69.81,-142.61)    1.88                49
 02/15/2024   23:51:01   ( -70.19,  -1.97) 02/15/2024   23:52:12  ( -70.13,  -1.55)   16.94                71
 02/16/2024   00:41:42   (  69.91, 165.76) 02/16/2024   00:41:41  (  69.92, 165.79)    1.78                 1
 02/16/2024   01:32:23   ( -69.78, -26.72) 02/16/2024   01:31:11  ( -69.80, -26.74)    2.87                72
 02/18/2024   16:07:48   ( -69.99, 114.12) 02/18/2024   16:08:41  ( -69.97, 114.11)    2.29                53
 02/18/2024   16:58:32   (  69.88, -78.40) 02/18/2024   16:58:08  (  69.87, -78.39)    1.44                24
 02/18/2024   17:48:59   ( -69.00,  90.18) 02/18/2024   17:47:51  ( -69.04,  88.13)   81.58                68
 02/21/2024   08:24:37   ( -69.92,-129.98) 02/21/2024   08:25:07  ( -69.94,-130.04)    3.22                30
 02/21/2024   09:15:21   (  69.81,  37.49) 02/21/2024   09:14:34  (  69.84,  37.46)    2.83                47
 02/23/2024   23:50:48   (  70.22, 178.04) 02/23/2024   23:51:59  (  70.15, 178.51)   19.66                71
 02/24/2024   00:41:26   ( -69.92, -14.17) 02/24/2024   00:41:31  ( -69.93, -14.17)    1.01                 5
 02/24/2024   01:32:10   (  69.81, 153.29) 02/24/2024   01:30:58  (  69.82, 153.33)    1.37                72