Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 1 18.  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)
 01/18/2024   23:26:10   (  69.99,-175.50) 01/18/2024   23:27:22  (  69.98,-175.57)    2.92                72
 01/19/2024   00:16:52   ( -69.91,  -8.06) 01/19/2024   00:16:51  ( -69.92,  -8.02)    2.19                 1
 01/19/2024   01:07:33   (  69.63, 159.67) 01/19/2024   01:06:20  (  69.71, 159.33)   15.84                73
 01/21/2024   15:43:03   (  69.99, -59.72) 01/21/2024   15:43:49  (  70.00, -59.66)    2.44                46
 01/21/2024   16:33:44   ( -69.86, 107.80) 01/21/2024   16:33:20  ( -69.83, 107.75)    3.37                24
 01/24/2024   07:59:55   (  69.95,  56.12) 01/24/2024   08:00:17  (  69.92,  56.12)    3.29                22
 01/24/2024   08:50:36   ( -69.82,-136.36) 01/24/2024   08:49:47  ( -69.82,-136.39)    1.45                49
 01/26/2024   23:26:04   ( -70.10,   4.38) 01/26/2024   23:27:15  ( -70.09,   4.60)    8.35                71
 01/27/2024   00:16:47   (  69.93, 171.95) 01/27/2024   00:16:43  (  69.92, 172.01)    2.56                 4
 01/27/2024   01:07:27   ( -69.74, -20.45) 01/27/2024   01:06:14  ( -69.76, -20.58)    5.53                73
 01/29/2024   15:42:53   ( -69.98, 120.35) 01/29/2024   15:43:41  ( -69.99, 120.36)    1.46                48
 01/29/2024   16:33:37   (  69.86, -72.17) 01/29/2024   16:33:08  (  69.87, -72.16)    1.19                29