Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 10 22.  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)
 10/23/2024   14:29:17   (  70.12, -40.88) 10/23/2024   14:29:42  (  70.14, -40.91)    2.06                25
 10/23/2024   15:19:59   ( -70.05, 126.55) 10/23/2024   15:19:12  ( -70.03, 126.57)    2.54                47
 10/26/2024   05:55:32   ( -70.43, -92.89) 10/26/2024   05:56:43  ( -70.35, -92.37)   21.27                71
 10/26/2024   06:46:12   (  70.09,  74.95) 10/26/2024   06:46:13  (  70.08,  74.88)    2.98                 1
 10/26/2024   07:36:54   ( -70.01,-117.61) 10/26/2024   07:35:42  ( -70.03,-117.56)    2.58                72
 10/28/2024   22:12:22   ( -70.19,  23.26) 10/28/2024   22:13:14  ( -70.19,  23.28)    1.13                52
 10/28/2024   23:03:06   (  70.07,-169.24) 10/28/2024   23:02:41  (  70.07,-169.24)    0.57                25
 10/28/2024   23:53:32   ( -69.14,  -0.56) 10/28/2024   23:52:25  ( -69.20,  -2.79)   88.45                67
 10/31/2024   13:38:52   (  71.16, -29.86) 10/31/2024   13:39:58  (  71.06, -27.15)   98.30                66
 10/31/2024   14:29:16   ( -70.13, 139.14) 10/31/2024   14:29:43  ( -70.14, 139.10)    1.66                27
 10/31/2024   15:20:00   (  70.01, -53.37) 10/31/2024   15:19:10  (  70.03, -53.42)    2.24                50
 11/03/2024   05:55:29   (  70.23,  87.45) 11/03/2024   05:56:41  (  70.20,  87.44)    3.29                72
 11/03/2024   06:46:10   ( -70.09,-105.01) 11/03/2024   06:46:11  ( -70.10,-105.07)    2.72                 1
 11/03/2024   07:36:52   (  69.87,  62.63) 11/03/2024   07:35:39  (  69.93,  62.33)   13.34                73