Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 1 7.  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)
 01/08/2024   07:09:35   ( -70.76,-112.52) 01/08/2024   07:10:42  ( -70.66,-110.46)   76.88                67
 01/08/2024   08:00:05   (  69.91,  56.13) 01/08/2024   08:00:21  (  69.89,  56.09)    2.30                16
 01/08/2024   08:50:47   ( -69.83,-136.43) 01/08/2024   08:49:50  ( -69.84,-136.35)    3.32                57
 01/10/2024   23:26:15   ( -70.03,   4.42) 01/10/2024   23:27:24  ( -70.03,   4.50)    2.99                69
 01/11/2024   00:16:58   (  69.85, 171.99) 01/11/2024   00:16:52  (  69.86, 171.92)    3.17                 6
 01/11/2024   01:07:37   ( -69.61, -20.33) 01/11/2024   01:06:24  ( -69.65, -20.75)   16.53                73
 01/13/2024   15:43:08   ( -69.98, 120.27) 01/13/2024   15:43:55  ( -69.98, 120.31)    1.43                47
 01/13/2024   16:33:52   (  69.86, -72.24) 01/13/2024   16:33:22  (  69.87, -72.20)    1.89                30
 01/16/2024   07:09:36   (  70.92,  67.24) 01/16/2024   07:10:42  (  70.79,  69.73)   92.01                66
 01/16/2024   08:00:01   ( -69.94,-123.88) 01/16/2024   08:00:26  ( -69.92,-123.91)    2.26                25
 01/16/2024   08:50:45   (  69.82,  43.60) 01/16/2024   08:49:53  (  69.80,  43.58)    2.04                52
 01/18/2024   23:26:13   (  70.10,-175.66) 01/18/2024   23:27:24  (  70.04,-175.49)    9.06                71
 01/19/2024   00:16:53   ( -69.90,  -8.05) 01/19/2024   00:16:55  ( -69.89,  -8.07)    1.64                 2
 01/19/2024   01:07:35   (  69.68, 159.59) 01/19/2024   01:06:23  (  69.72, 159.34)   10.38                72