Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 10 7.  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)
 10/07/2024   13:38:39   ( -71.07, 150.27) 10/07/2024   13:39:46  ( -70.97, 152.75)   90.07                67
 10/07/2024   14:29:07   (  70.09, -40.84) 10/07/2024   14:29:27  (  70.11, -40.90)    2.94                20
 10/07/2024   15:19:49   ( -70.02, 126.59) 10/07/2024   15:18:56  ( -70.04, 126.65)    3.29                53
 10/10/2024   05:55:20   ( -70.17, -92.50) 10/10/2024   05:56:25  ( -70.19, -92.52)    2.33                65
 10/10/2024   06:46:05   (  70.09,  74.93) 10/10/2024   06:45:52  (  70.09,  74.97)    1.47                13
 10/10/2024   07:36:39   ( -69.60,-117.01) 10/10/2024   07:35:28  ( -69.64,-118.01)   39.19                71
 10/12/2024   22:12:16   ( -70.15,  23.30) 10/12/2024   22:12:47  ( -70.16,  23.34)    1.94                31
 10/12/2024   23:03:00   (  70.02,-169.18) 10/12/2024   23:02:14  (  70.05,-169.17)    3.48                46
 10/15/2024   13:38:30   (  70.19, -28.30) 10/15/2024   13:39:38  (  70.22, -28.29)    3.56                68
 10/15/2024   14:29:12   ( -70.11, 139.14) 10/15/2024   14:29:08  ( -70.11, 139.19)    1.85                 4
 10/15/2024   15:19:51   (  69.71, -52.96) 10/15/2024   15:18:39  (  69.77, -53.64)   27.10                72
 10/18/2024   05:55:25   (  70.13,  87.57) 10/18/2024   05:55:57  (  70.14,  87.54)    1.77                32
 10/18/2024   06:46:07   ( -70.05,-104.99) 10/18/2024   06:45:27  ( -70.03,-104.99)    2.01                40
 10/20/2024   21:21:36   ( -70.23,  35.88) 10/20/2024   21:22:46  ( -70.23,  35.95)    2.67                70
 10/20/2024   22:12:20   (  70.11,-156.62) 10/20/2024   22:12:13  (  70.10,-156.58)    1.74                 7
 10/20/2024   23:02:58   ( -69.81,  11.14) 10/20/2024   23:01:45  ( -69.88,  10.74)   17.06                73