Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 11 9.  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)
 11/11/2024   05:05:48   (  71.18,  98.53) 11/11/2024   05:06:54  (  71.04, 101.09)   93.56                66
 11/11/2024   05:56:13   ( -70.20, -92.56) 11/11/2024   05:56:37  ( -70.22, -92.52)    2.09                24
 11/11/2024   06:46:57   (  70.07,  74.95) 11/11/2024   06:46:05  (  70.06,  74.90)    2.65                52
 11/13/2024   21:22:35   (  70.27,-144.26) 11/13/2024   21:23:33  (  70.26,-144.19)    2.75                58
 11/13/2024   22:13:16   ( -70.12,  23.29) 11/13/2024   22:13:03  ( -70.15,  23.28)    2.57                13
 11/13/2024   23:03:49   (  69.42,-168.36) 11/13/2024   23:02:40  (  69.48,-169.99)   64.31                69
 11/16/2024   12:49:10   ( -71.18, 162.68) 11/16/2024   12:50:16  ( -71.07, 165.30)   95.07                66
 11/16/2024   13:39:37   (  70.18, -28.39) 11/16/2024   13:39:57  (  70.20, -28.37)    2.07                20
 11/16/2024   14:30:19   ( -70.08, 139.09) 11/16/2024   14:29:27  ( -70.09, 139.10)    1.00                52
 11/19/2024   05:05:54   ( -70.23, -80.04) 11/19/2024   05:06:52  ( -70.21, -80.09)    2.97                58
 11/19/2024   05:56:38   (  70.12,  87.43) 11/19/2024   05:56:18  (  70.15,  87.47)    3.14                20
 11/19/2024   06:47:08   ( -69.38,-104.15) 11/19/2024   06:45:59  ( -69.43,-105.89)   68.11                69
 11/21/2024   20:32:25   (  70.89,-132.68) 11/21/2024   20:33:33  (  70.77,-130.96)   64.21                68
 11/21/2024   21:22:56   ( -70.20,  35.74) 11/21/2024   21:23:12  ( -70.17,  35.78)    3.14                16
 11/21/2024   22:13:39   (  70.04,-156.71) 11/21/2024   22:12:39  (  70.05,-156.75)    1.54                60