Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 2 9.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(LANDSAT-8) LANDSAT-8 Lat/Lon    Distance(km)  Time Diff(sec)
 02/09/2024   07:59:36   (  69.98,  56.18) 02/09/2024   08:00:20  (  69.96,  56.13)    2.67                44
 02/09/2024   08:50:18   ( -69.90,-136.39) 02/09/2024   08:49:49  ( -69.90,-136.32)    2.60                29
 02/12/2024   00:16:27   (  69.96, 171.99) 02/12/2024   00:16:49  (  69.93, 171.97)    3.38                22
 02/12/2024   01:07:08   ( -69.83, -20.49) 02/12/2024   01:06:19  ( -69.82, -20.55)    2.56                49
 02/14/2024   15:42:36   ( -70.18, 120.14) 02/14/2024   15:43:48  ( -70.14, 120.50)   14.25                72
 02/14/2024   16:33:17   (  69.91, -72.13) 02/14/2024   16:33:17  (  69.92, -72.16)    2.14                 0
 02/14/2024   17:23:59   ( -69.82,  95.31) 02/14/2024   17:22:47  ( -69.81,  95.32)    1.16                72
 02/17/2024   07:59:24   ( -70.03,-123.83) 02/17/2024   08:00:17  ( -70.04,-123.76)    3.10                53
 02/17/2024   08:50:07   (  69.86,  43.73) 02/17/2024   08:49:45  (  69.88,  43.66)    3.03                22
 02/17/2024   09:40:35   ( -69.03,-147.76) 02/17/2024   09:39:27  ( -69.11,-149.74)   79.07                68
 02/20/2024   00:16:13   ( -69.99,  -7.98) 02/20/2024   00:16:43  ( -70.01,  -7.91)    3.56                30
 02/20/2024   01:06:56   (  69.83, 159.57) 02/20/2024   01:06:11  (  69.85, 159.50)    3.04                45
 02/22/2024   15:42:26   (  70.33, -60.02) 02/22/2024   15:43:37  (  70.22, -59.36)   27.62                71
 02/22/2024   16:33:03   ( -69.97, 107.85) 02/22/2024   16:33:10  ( -69.95, 107.88)    2.76                 7
 02/22/2024   17:23:46   (  69.81, -84.61) 02/22/2024   17:22:37  (  69.83, -84.63)    2.48                69