Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 3 12.  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)
 03/12/2024   07:09:27   ( -70.05,-111.36) 03/12/2024   07:10:39  ( -70.03,-111.42)    3.50                72
 03/12/2024   08:00:10   (  69.93,  56.13) 03/12/2024   08:00:05  (  69.94,  56.09)    1.81                 5
 03/12/2024   08:50:49   ( -69.68,-136.18) 03/12/2024   08:49:36  ( -69.76,-136.52)   15.70                73
 03/14/2024   23:26:24   ( -70.02,   4.46) 03/14/2024   23:27:06  ( -70.03,   4.46)    1.26                42
 03/15/2024   00:17:08   (  69.90, 171.94) 03/15/2024   00:16:33  (  69.93, 171.96)    3.19                35
 03/17/2024   14:52:48   (  70.51, -47.87) 03/17/2024   14:53:58  (  70.45, -46.70)   44.31                70
 03/17/2024   15:43:22   ( -69.99, 120.26) 03/17/2024   15:43:34  ( -70.00, 120.30)    1.87                12
 03/17/2024   16:34:06   (  69.88, -72.27) 03/17/2024   16:33:01  (  69.90, -72.20)    3.09                65
 03/20/2024   07:09:38   (  70.08,  68.57) 03/20/2024   07:10:32  (  70.06,  68.63)    2.95                54
 03/20/2024   08:00:19   ( -69.92,-123.87) 03/20/2024   08:00:02  ( -69.95,-123.90)    3.01                17
 03/20/2024   08:50:49   (  69.07,  44.67) 03/20/2024   08:49:42  (  69.12,  42.64)   80.77                67
 03/22/2024   23:26:35   (  70.02,-175.58) 03/22/2024   23:26:59  (  70.03,-175.53)    2.10                24
 03/23/2024   00:17:16   ( -69.91,  -8.10) 03/23/2024   00:16:28  ( -69.92,  -8.05)    2.17                48
 03/25/2024   14:52:47   ( -70.07, 132.81) 03/25/2024   14:53:58  ( -70.09, 132.80)    2.37                71
 03/25/2024   15:43:31   (  69.97, -59.74) 03/25/2024   15:43:25  (  69.98, -59.72)    0.78                 6
 03/25/2024   16:34:10   ( -69.70, 107.98) 03/25/2024   16:32:57  ( -69.76, 107.61)   15.66                73