Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 5 17.  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)
 05/19/2024   06:44:12   (  70.23,  74.81) 05/19/2024   06:45:23  (  70.22,  75.06)    9.26                71
 05/19/2024   07:34:52   ( -70.05,-117.58) 05/19/2024   07:34:54  ( -70.05,-117.55)    1.24                 2
 05/19/2024   08:25:35   (  69.87,  49.99) 05/19/2024   08:24:22  (  69.89,  49.86)    5.04                73
 05/21/2024   23:01:01   (  70.11,-169.21) 05/21/2024   23:01:48  (  70.11,-169.21)    0.82                47
 05/21/2024   23:51:42   ( -69.98,  -1.69) 05/21/2024   23:51:18  ( -69.99,  -1.73)    2.45                24
 05/24/2024   14:27:23   ( -71.02, 137.82) 05/24/2024   14:28:30  ( -70.92, 140.26)   89.35                67
 05/24/2024   15:17:51   (  70.07, -53.34) 05/24/2024   15:18:11  (  70.05, -53.39)    2.93                20
 05/24/2024   16:08:33   ( -69.98, 114.10) 05/24/2024   16:07:40  ( -69.99, 114.16)    2.49                53
 05/27/2024   06:43:56   ( -70.15,-104.98) 05/27/2024   06:45:04  ( -70.16,-104.97)    0.87                68
 05/27/2024   07:34:40   (  70.04,  62.50) 05/27/2024   07:34:31  (  70.04,  62.51)    0.32                 9
 05/27/2024   08:25:17   ( -69.69,-129.66) 05/27/2024   08:24:05  ( -69.71,-130.32)   25.51                72
 05/29/2024   23:00:45   ( -70.08,  10.92) 05/29/2024   23:01:25  ( -70.10,  10.85)    2.86                40
 05/29/2024   23:51:29   (  69.97, 178.39) 05/29/2024   23:50:52  (  69.97, 178.33)    2.59                37