Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and LANDSAT-8
TLE Epoch: 2024 1 15.  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)
 01/16/2024   07:09:34   (  70.86,  67.33) 01/16/2024   07:10:40  (  70.78,  69.72)   87.60                66
 01/16/2024   08:00:00   ( -69.94,-123.89) 01/16/2024   08:00:23  ( -69.95,-123.85)    2.07                23
 01/16/2024   08:50:44   (  69.82,  43.61) 01/16/2024   08:49:51  (  69.79,  43.57)    2.92                53
 01/18/2024   23:26:11   (  70.01,-175.53) 01/18/2024   23:27:22  (  70.01,-175.52)    0.30                71
 01/19/2024   00:16:53   ( -69.93,  -8.09) 01/19/2024   00:16:52  ( -69.90,  -8.04)    3.25                 1
 01/19/2024   01:07:34   (  69.65, 159.64) 01/19/2024   01:06:21  (  69.68, 159.30)   13.76                73
 01/21/2024   15:43:03   (  69.96, -59.67) 01/21/2024   15:43:50  (  69.97, -59.70)    1.54                47
 01/21/2024   16:33:44   ( -69.88, 107.77) 01/21/2024   16:33:19  ( -69.86, 107.79)    1.49                25
 01/24/2024   07:09:28   ( -70.98,-112.83) 01/24/2024   07:10:34  ( -70.88,-110.12)   99.11                66
 01/24/2024   07:59:54   (  69.92,  56.17) 01/24/2024   08:00:16  (  69.94,  56.15)    2.02                22
 01/24/2024   08:50:36   ( -69.84,-136.39) 01/24/2024   08:49:46  ( -69.84,-136.36)    1.05                50
 01/26/2024   23:26:03   ( -70.07,   4.42) 01/26/2024   23:27:15  ( -70.04,   4.54)    5.33                72
 01/27/2024   00:16:46   (  69.90, 171.98) 01/27/2024   00:16:42  (  69.93, 172.02)    2.95                 4
 01/27/2024   01:07:26   ( -69.71, -20.41) 01/27/2024   01:06:13  ( -69.77, -20.56)    8.80                73