Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 9 23.  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   ( -70.61, -93.13) 09/24/2024   05:56:13  ( -70.50, -92.06)   41.64                71
 09/24/2024   06:45:39   (  70.11,  74.97) 09/24/2024   06:45:45  (  70.12,  75.03)    3.05                 6
 09/24/2024   07:36:20   ( -69.98,-117.52) 09/24/2024   07:35:15  ( -70.01,-117.49)    3.31                65
 09/26/2024   22:11:54   ( -70.15,  23.35) 09/26/2024   22:12:44  ( -70.17,  23.36)    2.49                50
 09/26/2024   23:02:39   (  70.07,-169.21) 09/26/2024   23:02:11  (  70.06,-169.15)    2.41                28
 09/26/2024   23:53:03   ( -69.04,  -0.39) 09/26/2024   23:51:57  ( -69.07,  -2.86)   98.12                66
 09/29/2024   13:38:21   (  70.73, -29.13) 09/29/2024   13:39:30  (  70.66, -27.64)   55.22                69
 09/29/2024   14:28:53   ( -70.12, 139.15) 09/29/2024   14:29:08  ( -70.11, 139.18)    1.72                15
 09/29/2024   15:19:37   (  69.99, -53.34) 09/29/2024   15:18:35  (  70.00, -53.33)    1.48                62
 10/02/2024   05:55:10   (  70.14,  87.56) 10/02/2024   05:56:02  (  70.16,  87.53)    2.74                52
 10/02/2024   06:45:52   ( -70.06,-105.00) 10/02/2024   06:45:32  ( -70.06,-104.99)    0.82                20
 10/02/2024   07:36:20   (  69.08,  63.74) 10/02/2024   07:35:14  (  69.11,  61.37)   94.06                66
 10/04/2024   21:21:39   ( -70.96,  34.69) 10/04/2024   21:22:46  ( -70.88,  36.86)   79.47                67
 10/04/2024   22:12:09   (  70.10,-156.61) 10/04/2024   22:12:25  (  70.10,-156.64)    1.10                16
 10/04/2024   23:02:51   ( -70.02,  10.83) 10/04/2024   23:01:55  ( -70.00,  10.84)    2.49                56
 10/07/2024   13:38:23   ( -70.15, 151.76) 10/07/2024   13:39:20  ( -70.16, 151.71)    2.30                57
 10/07/2024   14:29:07   (  70.02, -40.73) 10/07/2024   14:28:47  (  70.04, -40.81)    3.69                20