Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 3 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)
 03/09/2024   15:43:13   (  69.96, -59.67) 03/09/2024   15:43:37  (  69.98, -59.72)    3.29                24
 03/09/2024   16:33:55   ( -69.87, 107.79) 03/09/2024   16:33:07  ( -69.86, 107.74)    1.97                48
 03/12/2024   07:09:26   ( -70.04,-111.33) 03/12/2024   07:10:38  ( -70.05,-111.40)    2.56                72
 03/12/2024   08:00:10   (  69.92,  56.15) 03/12/2024   08:00:05  (  69.95,  56.11)    3.23                 5
 03/12/2024   08:50:49   ( -69.67,-136.16) 03/12/2024   08:49:37  ( -69.72,-136.57)   17.01                72
 03/14/2024   23:26:24   ( -70.01,   4.47) 03/14/2024   23:27:06  ( -70.04,   4.47)    3.68                42
 03/15/2024   00:17:08   (  69.90, 171.95) 03/15/2024   00:16:34  (  69.88, 171.90)    2.59                34
 03/17/2024   14:52:49   (  70.56, -47.95) 03/17/2024   14:53:58  (  70.45, -46.70)   48.40                69
 03/17/2024   15:43:22   ( -69.99, 120.27) 03/17/2024   15:43:34  ( -70.01, 120.30)    2.48                12
 03/17/2024   16:34:06   (  69.88, -72.26) 03/17/2024   16:33:01  (  69.90, -72.20)    3.10                65
 03/20/2024   07:09:37   (  70.03,  68.65) 03/20/2024   07:10:32  (  70.05,  68.61)    2.45                55
 03/20/2024   08:00:19   ( -69.92,-123.87) 03/20/2024   08:00:02  ( -69.94,-123.91)    2.23                17
 03/20/2024   08:50:49   (  69.07,  44.66) 03/20/2024   08:49:42  (  69.11,  42.62)   81.06                67
 03/22/2024   23:26:33   (  69.98,-175.51) 03/22/2024   23:26:58  (  70.00,-175.56)    3.34                25
 03/23/2024   00:17:16   ( -69.92,  -8.11) 03/23/2024   00:16:28  ( -69.90,  -8.08)    2.90                48