Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-9
TLE Epoch: 2024 2 11.  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)
 02/13/2024   07:34:26   ( -70.99,-119.06) 02/13/2024   07:35:32  ( -70.87,-116.34)   99.48                66
 02/13/2024   08:24:52   (  69.92,  49.95) 02/13/2024   08:25:14  (  69.95,  49.96)    3.29                22
 02/13/2024   09:15:34   ( -69.85,-142.62) 02/13/2024   09:14:44  ( -69.83,-142.58)    1.92                50
 02/15/2024   23:51:00   ( -70.16,  -1.92) 02/15/2024   23:52:12  ( -70.08,  -1.63)   14.21                72
 02/16/2024   00:41:42   (  69.94, 165.72) 02/16/2024   00:41:40  (  69.92, 165.80)    3.27                 2
 02/16/2024   01:32:23   ( -69.80, -26.75) 02/16/2024   01:31:10  ( -69.80, -26.73)    0.93                73
 02/18/2024   16:07:47   ( -69.97, 114.16) 02/18/2024   16:08:39  ( -70.00, 114.15)    3.41                52
 02/18/2024   16:58:31   (  69.85, -78.36) 02/18/2024   16:58:07  (  69.84, -78.43)    3.19                24
 02/18/2024   17:48:57   ( -68.92,  90.29) 02/18/2024   17:47:50  ( -69.00,  88.10)   88.17                67
 02/21/2024   08:24:37   ( -69.95,-130.02) 02/21/2024   08:25:05  ( -69.92,-130.06)    3.36                28
 02/21/2024   09:15:21   (  69.84,  37.45) 02/21/2024   09:14:32  (  69.81,  37.44)    3.22                49
 02/23/2024   23:50:47   (  70.15, 178.15) 02/23/2024   23:51:58  (  70.08, 178.42)   13.11                71
 02/24/2024   00:41:26   ( -69.90, -14.14) 02/24/2024   00:41:29  ( -69.91, -14.18)    1.93                 3
 02/24/2024   01:32:09   (  69.74, 153.40) 02/24/2024   01:30:57  (  69.74, 153.24)    6.32                72