Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 21.  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)
 09/24/2024   05:55:02   ( -70.63, -93.16) 09/24/2024   05:56:12  ( -70.54, -92.00)   43.86                70
 09/24/2024   06:45:38   (  70.07,  75.02) 09/24/2024   06:45:45  (  70.10,  75.01)    3.32                 7
 09/24/2024   07:36:20   ( -69.99,-117.54) 09/24/2024   07:35:15  ( -69.99,-117.52)    0.95                65
 09/26/2024   22:11:54   ( -70.16,  23.33) 09/26/2024   22:12:44  ( -70.16,  23.34)    0.79                50
 09/26/2024   23:02:38   (  70.03,-169.16) 09/26/2024   23:02:11  (  70.05,-169.17)    1.90                27
 09/26/2024   23:53:03   ( -69.05,  -0.41) 09/26/2024   23:51:56  ( -69.11,  -2.81)   95.25                67
 09/29/2024   13:38:22   (  70.74, -29.15) 09/29/2024   13:39:31  (  70.65, -27.66)   55.90                69
 09/29/2024   14:28:53   ( -70.08, 139.21) 09/29/2024   14:29:09  ( -70.11, 139.17)    3.07                16
 09/29/2024   15:19:38   (  70.00, -53.36) 09/29/2024   15:18:36  (  69.99, -53.34)    1.37                62
 10/02/2024   05:55:10   (  70.15,  87.54) 10/02/2024   05:56:02  (  70.16,  87.53)    1.45                52
 10/02/2024   06:45:52   ( -70.07,-105.01) 10/02/2024   06:45:32  ( -70.06,-104.99)    1.60                20
 10/02/2024   07:36:20   (  69.09,  63.73) 10/02/2024   07:35:13  (  69.17,  61.45)   90.89                67
 10/04/2024   21:21:39   ( -70.96,  34.69) 10/04/2024   21:22:46  ( -70.89,  36.88)   80.11                67
 10/04/2024   22:12:09   (  70.10,-156.62) 10/04/2024   22:12:25  (  70.11,-156.63)    1.24                16
 10/04/2024   23:02:51   ( -70.02,  10.82) 10/04/2024   23:01:55  ( -70.01,  10.86)    1.70                56