Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 6 25.  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)
 06/25/2024   14:28:00   ( -70.12, 139.11) 06/25/2024   14:28:36  ( -70.14, 139.05)    3.10                36
 06/25/2024   15:18:45   (  70.04, -53.46) 06/25/2024   15:18:03  (  70.05, -53.44)    0.72                42
 06/28/2024   05:54:22   (  70.51,  86.96) 06/28/2024   05:55:33  (  70.42,  87.69)   28.78                71
 06/28/2024   06:44:58   ( -70.11,-105.10) 06/28/2024   06:45:07  ( -70.09,-105.16)    3.49                 9
 06/28/2024   07:35:42   (  69.98,  62.40) 06/28/2024   07:34:34  (  69.99,  62.34)    2.43                68
 06/30/2024   22:11:14   (  70.19,-156.78) 06/30/2024   22:12:07  (  70.18,-156.80)    1.65                53
 06/30/2024   23:01:55   ( -70.05,  10.76) 06/30/2024   23:01:37  ( -70.06,  10.68)    3.44                18
 06/30/2024   23:52:25   (  69.18, 179.33) 06/30/2024   23:51:18  (  69.19, 177.13)   87.12                67
 07/03/2024   14:28:11   (  70.14, -40.94) 07/03/2024   14:28:37  (  70.13, -40.99)    2.39                26
 07/03/2024   15:18:53   ( -70.05, 126.52) 07/03/2024   15:18:07  ( -70.02, 126.49)    3.27                46
 07/06/2024   05:54:25   ( -70.32, -92.75) 07/06/2024   05:55:37  ( -70.29, -92.54)    8.75                72
 07/06/2024   06:45:07   (  70.10,  74.89) 07/06/2024   06:45:05  (  70.12,  74.87)    2.46                 2
 07/06/2024   07:35:48   ( -69.95,-117.56) 07/06/2024   07:34:36  ( -69.96,-117.73)    6.26                72
 07/08/2024   22:11:20   ( -70.18,  23.24) 07/08/2024   22:12:07  ( -70.20,  23.22)    3.25                47
 07/08/2024   23:02:04   (  70.07,-169.29) 07/08/2024   23:01:34  (  70.09,-169.30)    2.61                30