Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 2 13.  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)
 02/14/2024   15:42:36   ( -70.21, 120.09) 02/14/2024   15:43:47  ( -70.16, 120.53)   17.37                71
 02/14/2024   16:33:17   (  69.94, -72.18) 02/14/2024   16:33:16  (  69.95, -72.13)    2.36                 1
 02/14/2024   17:23:58   ( -69.80,  95.34) 02/14/2024   17:22:46  ( -69.83,  95.34)    3.39                72
 02/17/2024   07:59:23   ( -70.01,-123.80) 02/17/2024   08:00:17  ( -70.00,-123.81)    0.88                54
 02/17/2024   08:50:07   (  69.89,  43.68) 02/17/2024   08:49:44  (  69.90,  43.68)    0.48                23
 02/17/2024   09:40:34   ( -69.02,-147.74) 02/17/2024   09:39:27  ( -69.07,-149.79)   82.01                67
 02/20/2024   00:16:13   ( -69.98,  -7.96) 02/20/2024   00:16:44  ( -69.97,  -7.97)    0.86                31
 02/20/2024   01:06:57   (  69.87, 159.52) 02/20/2024   01:06:11  (  69.86, 159.52)    0.38                46
 02/22/2024   15:42:26   (  70.31, -60.00) 02/22/2024   15:43:37  (  70.23, -59.35)   26.29                71
 02/22/2024   16:33:03   ( -69.96, 107.86) 02/22/2024   16:33:10  ( -69.95, 107.90)    1.28                 7
 02/22/2024   17:23:47   (  69.85, -84.67) 02/22/2024   17:22:37  (  69.84, -84.61)    2.12                70
 02/25/2024   07:59:09   (  69.99,  56.29) 02/25/2024   08:00:05  (  70.01,  56.23)    2.67                56
 02/25/2024   08:49:51   ( -69.90,-136.25) 02/25/2024   08:49:35  ( -69.90,-136.29)    1.42                16
 02/25/2024   09:40:22   (  69.10,  32.21) 02/25/2024   09:39:14  (  69.12,  30.31)   75.17                68