Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 10 12.  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)
 10/12/2024   22:12:16   ( -70.17,  23.28) 10/12/2024   22:13:03  ( -70.15,  23.26)    2.03                47
 10/12/2024   23:03:00   (  70.02,-169.20) 10/12/2024   23:02:30  (  70.04,-169.25)    2.77                30
 10/15/2024   13:38:45   (  70.98, -29.59) 10/15/2024   13:39:52  (  70.90, -27.37)   80.99                67
 10/15/2024   14:29:12   ( -70.12, 139.11) 10/15/2024   14:29:34  ( -70.14, 139.13)    2.22                22
 10/15/2024   15:19:57   (  70.04, -53.45) 10/15/2024   15:19:01  (  70.03, -53.38)    2.57                56
 10/18/2024   05:55:26   (  70.19,  87.47) 10/18/2024   05:56:34  (  70.18,  87.44)    1.33                68
 10/18/2024   06:46:07   ( -70.06,-105.02) 10/18/2024   06:46:04  ( -70.08,-105.07)    3.11                 3
 10/18/2024   07:36:47   (  69.72,  62.81) 10/18/2024   07:35:35  (  69.75,  62.10)   27.56                72
 10/20/2024   22:12:21   (  70.16,-156.71) 10/20/2024   22:13:01  (  70.18,-156.68)    1.69                40
 10/20/2024   23:03:02   ( -70.03,  10.81) 10/20/2024   23:02:32  ( -70.02,  10.73)    3.25                30
 10/23/2024   13:38:41   ( -70.82, 150.71) 10/23/2024   13:39:50  ( -70.72, 152.39)   62.12                69
 10/23/2024   14:29:14   (  70.12, -40.86) 10/23/2024   14:29:26  (  70.11, -40.87)    1.11                12
 10/23/2024   15:19:55   ( -69.99, 126.66) 10/23/2024   15:18:56  ( -70.01, 126.62)    3.30                59
 10/26/2024   05:55:23   ( -70.17, -92.47) 10/26/2024   05:56:23  ( -70.17, -92.52)    2.08                60
 10/26/2024   06:46:08   (  70.11,  74.94) 10/26/2024   06:45:49  (  70.10,  75.02)    3.20                19